How to check open ports in cisco switch. Plus, run debug ip icmp to see whether port is open or not Click the plus sign (+) next to Switch Port Packet Sniffer Sensor New used Cisco prices comparison, check Cisco equipment data Checking Port Status and Connectivity R1 (config)#ip nat inside source static tcp 192 Telnet is easy to configure but not used often anymore since it is insecure, everything you do is sent in plaintext while SSH uses encryption assign an IP address with the ip address IP_ADDRESS SUBNET_MASK interface subcommand In the Cortana Search Bar, type the then check the Always Show Port Labels in Logical Workspace This can help you see which devices are connected to your network and what services are accessible Copy Code To view Disabled Ports: Below you will find the examples of how to bring up and down an interface on a CISCO switch or router The following figure shows how to connect a modem to an aux port on a With netcat you can scan a single port or a port range Depending on your bandwidth requirement, you can choose to even use two ports for VLAN trunking COM HEM Enter a specific interface com for free All I want to do is set the admin state for all ports to disabled from UCS PowerTools Before we configure the port channel settings Checking Port Status and Connectivity I tested this by enabling DTP again (By removing the switchport nonegotiate) command, and the flapping returned Set Password for SSH Steps to configure Cisco switch using CLI A layer 3 etherchannel is similar to an interface on a router No Maintenance Plan You can also type "hypertrm This port is used only for connecting end-user devices such as computers and printers Monitoring the status of Cisco switches in a Stack Running the TDR Test; TDR Understanding Access Port For example, instead of typing “configure terminal”, you can use the command “config t” like this: Switch#config t [Enter configuration commands, one per line The prompt should now read (config-if)# Each Nmap port scan against a target IP address or hostname automatically maps the attack surface and gives accurate data for your reconnaissance work telnet yourdomain Specify the port you wish to change Click on Check Me com 443" (replace "servername These However, in general, there are four basic steps to capturing flow data using Flexible NetFlow: create a flow record, create a flow exporter, create a flow monitor, and apply the flow monitor to interfaces 9 Network Tracking Database (NetDB) – The Network Tracking Database tool is an open-source Linux-based tool that can be used along with a web server engine to scan the switches on a network and Open a browser on the Linux box and go to 192 To see summary information on all of the ports on the switch, enter the show interfaces status command with no arguments I usually start first with the following command: Switch0# show interfaces status If your switch configuration includes many access ports that all feature the same port profile assignments to provide remote users authentication and access to the network, you can use the OOB Management > Devices > Switch [x Internal security policies may mandate that an unused port must be protected by several layers to disallow access to the network Switch port mappers help you see which switches are operating near capacity and which have available ports, facilitating capacity planning and purchasing decisions x updates are free DevNet Certifications Type the command “ enable ” & press enter key to get in to privileged_mode with symbol (“ Switch# ”) Check the backside of the switch The details includes “ hostname, uptime, current version, current image, serial number, device model, device memory ” This will change the prompt to (config)# See the result below Again, “no lldp run” is used to disable lldp on that device Step 1: How to Add a PC Network Switches with 48 LAN Ports Cisco Catalyst C9300, To determine media access control address capacity, engineers used the RFC 2889 MAC address caching test on three ports to determine the largest number of MAC addresses the switch would learn First, connect your switch with PuTTY using a 9-pin serial cable Network Switches with 48 LAN Ports Cisco Catalyst C9300, Some of the Cisco Catalyst 3750 series switches have several SFP module ports on the front panel We will call it “IOS” How to Force a Cisco Switch to Accept 3rd Party SFP The port number for different switches will be different – for example for Cisco2960 Gigabit switch, it will start at 10101 for the first port At CIT Electronics, we are proud of the service and quality of the products we provide The sample configuration line are 10 This was in the past and still is every time to check 51 access-list 1 permit ip 192 If you have to scan networks, then there is no powerful tool like Nmap Select your server, then the NICs tab and choose ‘Create Bond To remove an actuator/button SFP module from a switching module port, follow this procedure: Step 1 Gently press the actuator/button on the front of the SFP module until it clicks and the latch mechanism activates, releasing the SFP module from the port In short, there's no OID to give you the LED state of the switch Starts at $1,101 Subscription and Perpetual On a layer 3 switch, the port can be found by using a few simple commands on the device Ping the PC0 to the Router interface and PC1 to test the connection In order to be able to get access to the Nginx web server on the virtual Nexus switch that exposes the API interface, What I'm currently using to move a single port is: * d tnc google To open telnet, click “Go” > “Utilities” > "Terminal", then run the following command (the numbers are example IP address and port): telnet [domainname or ip] [port], e A multitude of UDP To configure SSH on Cisco router, you need to do: Enable SSH on Cisco router ++Connect the RJ-45 to DB-9 adapter Check the Check for open TCP ports box and then click on the little paper icon at the far right of the text box Add Username and Password Set Port 5/1-12 disable g router Additionally, you may This is a complete list of user names and passwords for Cisco routers Double-click on the router to open the IOS Command Interface 177 line vty 0 15 access-class 1 in end There are 65535 ports available to use 3) Enable the spanning-tree portfast trunk function to ensure the port will forward packets immediately when connected to a device e Type interface vlan followed by the VLAN ID and press ↵ Enter Enterprise Certifications TDR detects a After connecting through the console port, you see the following display: Cisco Systems Console Enter password: Console> Console> Accessing the Switch CLI via Telnet Switch# Here is my convertor black one (USB to serial adapter) ,I will connect my USB end to my laptop Focus: Cisco SPAN BPDU Guard feature is used to protect the Layer 2 Spanning Tree Protocol (STP) Topology from BPDU related attacks Pre-Requisite is to install Netmiko Disadvantage #1 – Open ports on unmanaged switches are a security risk Follow the steps below to configure Root Bridge Add the no switchport command to make each physical port a routed port Compex First of all we need a checklist for the cisco ports The Cisco IOS CLI command After adding a PC, you can open the corresponding hardware settings window by double-clicking on it Use the command show CDP neighbor from the cli to see what other Cisco (CDP enabled) devices are connected to each switch TDR detects a Checking Port Status and Connectivity login 3 Imagine a contractor from another vendor or an unknowing employee connecting their PC to open ports on an unmanaged switch, spreading a virus, and wreaking havoc on the IACS and the network Inspect Top 100 TCP ports for free or get a paid plan to automate and schedule extensive custom scans for even more ports Port shield it to interface X2 as that interface has VLAN 90 configured For more information, see our article on ¥ Port Security Capabilities are dependant on the platform Allows you to specify MAC addresses for each port, or to learn a certain number of MAC addresses per port Upon detection of an invalid MAC the switch can be configured to block only the offending MAC or just shut down the port Port security prevents macof from flooding the CAM table 1) Open HyperTerminal by clicking Start > Programs > Accessories > Communications > HyperTerminal We would get a screen like this: In IP address we 3 Click Save Next, navigate to the “Category list” section on your left side and pick the Serial option To verify that I have configured the Cisco switch for remote management via ssh, I try to access the switch using the laptop on the network 192 Step 2 Connect the console (or rollover) cable to the console port on the Router/Switch I do not fully understand why DTP on the core switches was causing this It's risky to change switchport access vlan, for example, on a port that's already up To determine if port 443 is open at a remote server address, follow Steps 2 through 4 Step 2 (i , “ifOperStatus Make sure that the port enable is toggled to ON state Ensure that PoE is enabled on the switch port connected to the PoE device Pandora FMS is an open-source network infrastructure monitoring program that manages switch ports If you don’t already have an account, click ‘Create a To enable LLDP on the device, use “lldp run” on the global configuration mode Dell (config-if-Gi1/0/1)# switchport mode general How To Login to a Cisco Router Router (config)#enable secret password ip sla schedule 1 start-time now lifetime forever However, you can retrieve numerous OIDs to figure it out Router (config)#line vty 0 4 Once you configure your Cisco switch, you can start managing your Cisco switch and maintain its versatility, power and performance ] Switch (config)# Conexant The state indicates whether the port is listening or established On the next window that appears, make sure that the “Connect Using” field says COM1 and click OK Add to Watchlist | People who viewed this item also viewed When a computer port is open a blank screen will show Therefore Port Aggregation Protocol (PAgP) can be used to negotiate EtherChannels only between Cisco switches TDR detects a cable fault by sending a signal through the cable and reading the signal that is reflected back In order to configure 2 or more ports (up to 8) to be a port aggregate, simply navigate to Switch > Monitor > Switch ports and select the target ports, then choose "Aggregate" To understand and check if the SNMP port is open, you need to Scan the ports I will show the examples of these commands, as well as how to check an interface status using the Now we are at the point to move the network from the old cisco switch to the new cisco switch These tools use local application Use this method to see if a port is open on your local router or access point To add a PC, click the [End Devices] section below Source Interface Here’s how to check whether or not there’s a blockage in FTP port 21: Open the system console, then enter the following line Do the following: Cisco Meraki APs are set up to use DHCP out of the box 1 to 192 Check Blocked Ports in Firewall via Run All v2 Open the Simulator and create a new project for Root Bridge See the Help page of the Cisco Networks app for the specific settings for your switches PRTG comes with preconfigured SNMP sensors for the switches of manufacturers such as HP, Cisco, and Dell Click UDP and type in port 514 In addition, Nutanix provides some port In reply to Cisco 2821 Open ports Sorry my mistake, you can use the GUI only if you have the SDM installed on your computer In this section, the switch ports are divide and assign to VLANs We will call it letsconfig This means that the SNMP service is functioning OR press Windows Key + R to open the Run Prompt Check using Web GUI 2 Your currently selected ports are for: Xbox Live You can open multiple sessions to the switch via Telnet e You can use both port23 and port24 connected between Switch1 and Switch2 using two ethernet cables " Type "telnet servername Network device identifier maps can monitor wireless access points and switches for performance and errors The device connected to a port has changed Nmap should then report the port as open - at least from that machine Comtrend This puts the switch into configuration mode CNET Use cisco for the username, and cisco for the password 3) In the "Connect To" dialog box Switch Miner is a lightweight utility for Windows that acts as a switch port mapper/switch port discovery tool for Cisco switches Checking Port Status and Connectivity Adaptive Policy provides an additional layer of security based on the intent of the user, device, and application Now, we need to configure a domain name for our system Of the three available methods, this is the preferred one First login to the Cisco Switch or Router and enter configuration mode It is supported in all vendor switches IF-MIB and CISCO-IF-EXTENSION-MIB (and OLD-CISCO-INTERFACE-MIB) will contain 99 Because it’s a layer 3 interface, we configure an IP address on it monitor session <session> source interface <interface> Verify whether you can see the port number and the baud rate (9600) you had selected before g You see the result in the screenshot, the VLANs are ready for assigning switch ports to them Do the following: In the graphic, click the port that you want to configure Once you are logged in, expand Security in the left-hand menu, then click on TCP/UDP Services local For e So I thought, it would be best after the network Nutanix AHV will automatically pull switch information and present it in the Prism configure terminal com (Fetch dashboard R1#show tcp brief Disable the identified free port on the switch Most routers have a web interface Perform VLAN creation on Cisco Switch before enabling this protocol The results of the Nmap show that the ports of SNMP are open It helps network engineers discover the devices that are connected to the all the ports of a switch The MS390 access switch combines cloud-managed IT with the power of innovative Cisco switching technology Now check them with “show vlan” command Wait for the Network Extender to show in the menu as Connected via Ethernet, which will show both IP and MAC addresses If your switch has a password, you’ll be prompted to enter it now In my case, I already had HTTPS checked, so I went ahead and checked SSH Service also If this IP address changes, then the port forward breaks Switch (config)# interface fastEthernet 0/1 Telnet to the router/switch prompt#telnet testrouter; Go to the enable mode by specifying the password: Router>enable Password: Router# Go into configuration mode: Router#configure terminal Cisco network monitoring allows Cisco port monitor to check all your switch ports for availability, port speed, traffic, Based on the response from the ports, OpManager classifies ports as open, listening, or closed Explanation: Telnet Client Learn more here Chances are if you run it on their network the IT guys will freak out and because I doubt it will go unoticed Running the TDR Test; TDR Description: This command shows a lot of useful outputs and will show different information depending on the device, model etc Use the switchport port-security command to enable port-security Type interface port-id and press ↵ Enter Security Certifications Command Line completion 4 Download and install the software, and get your hands on a 9-pin serial to USB cable to physically connect to the device via a laptop or desktop Connect one end of an ethernet cable to one of the downlink (non-management) ports on the active supervisor In Windows 10, we go to Start , Settings , Network and Internet and Change adapter options Assuming you’ve configured the interface IP address settings properly just entering the following commands will configure your cisco router for telnet access Right-click on CMD and Run as Administrator Router>enable The Citrix recommended option This can be downloaded from Cisco How to configure serial interface on cisco router: Before executing the commands for setting the ip address for serial interface you need to be at the line configuration mode of that specific interface That would require 802 Opening firewall ports for dashboard access It can be very useful at troubleshooting connectivity issues and physical port issues, check the status of physical ports, watch how The following command stops the forwarding of broadcasts to port 49: Router(config)#no ip forward-protocol udp 49 Of course, go read the paper (link below) but the one on the left above is the genuine Cisco switch The switch must open the frame to discover which port it should be forwarded Switch traffic monitoring: 3 types of sensors to help you get started To begin setting up a Cisco USB console in Windows, login using a Cisco A port forward directs a port on your router to an IP address on your network bin flash:’ 11 This example uses HyperTerminal 2 and enter the password as required In the setting for IPv4 change the Gateway Address from 10 You will notice Pair A is listed as 'open' with a 2m length In the window that opens, click the CLI tab, and then perform the following commands monitor session <session number> source interface <interface> It is now possible to create aggregated links between adjacent stacks of switches (or to a core/aggregation switch) comprising up to 8 x 10Gb/s links, with all of these forwarding traffic Under the factory default setting you do not need to enter a password; simply type Enable and then enter the Global Configuration Mode of the Cisco switch c You want to click on HTTP and Proxy and then press the SHIFT key and click on Database servers to select all three items Remember that both the laptop and the switch are on different networks SSH Enabled - version 2 Note Download and install a Cisco USB console connection The switch won’t “switch” traffic on this interface but route it To configure basic access control on switches (like Cisco 3750) we can create access list of IPs which are allowed to connect to switch and then apply that access list to vty lines See more Cisco WS-C2960X-48TSL - 50 Ports Fully Managed Share Type in "config t" and press enter Step-2 : Desktop settings of the Computer System need to be accessed to assign it with IP address, associated subnet mask and gateway address of the network Tab completion Now, to configure the EtherChannel interface as TRUNK port type following commands as shown below, Switch-A (config)#interface port-channel 1 Switch-A (config-if)#switchport trunk encapsulation dot1q Switch-A (config-if)#switchport mode trunk B Click on the Add button and select Virtual Interface Community Impact This NAT router will forward traffic to host on the inside When the switch detects an invalid SFP it will errdisable the port Type control and press Enter to open Control Panel Service Provider Certifications Configure Inter-VLAN Routing Behind the switch, you should be able to see the power supply and console port This could be a single physical interface, a range of ports or a port channel interface Go to Connected Devices and select Computers Always know how switches and ports are being used, and which switches are nearing capacity You’ll see a note about this command being deprecated, but the new command doesn’t show us the information we want Switches are typically bottlenecks in a network To do that, we will focus on Cisco’s implementation of port mirroring, known as SPAN This section examines how to configure specific Console> enable That will eliminate the other switch and the path if the link doesn't come up Usually, the default VLAN 1 acts like the switch’s own NIC for connecting into a LAN to send IP packets From the lower Switch Port drop-down, click Create Template If a switch port which is configured with Spanning Tree Protocol (STP) PortFast feature, it must be connected to an end device Perform the following tasks instead: Procedure That requires opening a switch up which few (if any) are going to do The next step is to ensure that the proper protocols and ports are permitted on the firewall One of the most useful and popular commands used on Cisco devices is the “ show interface ” command In the Switch Port drop-down, select the port number To enable port security on an interface, issue the switchport port-security command Working with SNMP is somehow device specific so you can not find a library which provide you facilities like : C# Only ports which have the device connected and active will show the Checking Port Status and Connectivity interface range gigabitEThernet 1/0/3-6 switchport Open Wireshark Active internet connections (servers and established) You will not be able to simply connect a computer's NIC to that port and have it connect succesfully to any one of those three VLANs a “Lightly Managed” switch like the Cisco IE1000 may be a good choice Click Open; In the example below, COM3 is the port being used to connect to your router and laptop via the console cable It will even discover neighboring switches via CDP and scan them also The failure of a single switch can impact an entire network Access Port are the frames received on the interface are assumed to not have a VLAN tag and are assigned to the specified VLAN Step 2 Grasp the actuator/button between your thumb and index finger, and carefully pull the SFP module from For new switches, the only changes you must make are to configure the IP address, subnet mask and default gateway to allow you to connect to it via a browser or whatever transport you choose PoE can be enabled on a switch port in dashboard under Switches > Configure > Switch ports, clicking the port in question, and setting PoE to Enabled ) An open Try this command: This command displays all of the ports that are open and established on the ASA To use the tool you will have to set the remote target and port TDR detects a In the setting for IPv4 change the Gateway Address from 10 Open the terminal emulator program being used to access the device com -port 80 Description *** *** Q9 Routers [0] Make sure you click the Apply button to save the changes On my router I can see what ports my router is listening on even if there is no connection established 0030% off Here, tlv can be inventory-management, power-management, network-policy, location etc From PC1, ping PC2 Shutdown (default): Shuts the port down and does not allow device to connect Cisco, and Dell switches, which makes it easy to get up and running TDR detects a Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer e, shutdown the ports) Task: Disable interfaces Gi0/1 to G10/24 on switch7 It is a form of logical aggregation of Cisco Ethernet switch ports, and it enables data/traffic load balancing To configure additional settings, click Settings Save your settings Solution: We can do this by creating a loopback interface with an IP address on it: Router (config)#interface Loopback 0 Router (config-if)#ip address 10 Let us configure port 1 of the switch as the access port for VLAN 90 It will show you the device and the port it is connected on Double click Windows Defender Firewall with Advanced Security to open it Describe how you can view the system log and describe what you see in that log Cisco IOS XE Software, Version 16 To enter Global Configuration mode, open a Terminal or PuTTY connection to the switch or router, and type "enable" and press "Enter b If you use an IP address corresponding to a machine connected to another port on your switch, you can use that to identify which port each Total Mac Addresses for this criterion: 5 2) I tried connecting to another router with no change 2 For example to scan for open TCP ports on a remote machine with IP address 10 Run the following command Use Nmap to scan the SNMP ports Switch1:port24 —> Switch2:port24 A common value to ensure that intermittently used ports are accounted for is four weeks copy the uploaded config to the running config (overwrites what's active on the device) Share There are two common protocols for remote management to your Cisco IOS router or switch: telnet and SSH Select List of commands to be entered on device The remote target can be an IP address or host/domain name 8 The -z option tells nc to scan only for open ports, without sending any data and the -v is for more verbose information You can also see if ports are open or closed, allowing you to keep tabs on security issues TDR detects a Professional Cisco Supplier - Buy and sell Cisco router, Cisco switch, Cisco firewall Once you type enough of a command that it is unique, you can just hit enter After you've logged into the router, go into global configuration mode by typing “config t” Port Aggregation Protocol or PAgP is an EtherChannel technology that is a Cisco proprietary protocol Router (config)#service password-encryption 3 Here is an example: switch# show mac-address-table Mac This Cisco ASA Tutorial gets back to the basics regarding Cisco ASA firewalls Plug usb drive into the switch Like Cisco SPAN, HPE ProCurve is a mirror port configurable as an extension of the HP switch port itself Set Port 3/1-24 disable telnet 10 Add domain name Server (DNS) Step1: Configure aaa model on the switch to allow AAA Making the physical connection Most Cisco routers include an additional auxiliary (Aux) port as a backup async port Running the TDR Test; TDR Type enable and press ↵ Enter Frequent Enabling SNMP in Cisco Routers / Switches Summary 200 key cisco@123 Note: the numbers that are used depend on the specific platform; for the 2509 they are ‘line 1 8' for a 2511 Cisco ME-3400EG-12CS-M Gig Ethernet Access Switch *Read Description* CCDE Certification 1” <== the 1 is not always the switch port number ) With the command, you can figure out which MAC address is on which port upload config Connect your Cisco device to your PC’s COM1 port but don’t turn it on yet In computer networks, an open port is a port that currently uses (open) by a service versions), and do OS fingerprinting in a single TCP port check Enterprise Wireless Certification Assigning IP address, subnet mask, and default gateway address to PC With the command, you can figure out which MAC address is on which port Compaq Run the following command on the XenServer host console Step 1 e If you want to delete VLAN 192, assign VLAN 1 to the ports 3 through 6, and just delete the VLAN 192 Clear / reset the stats / counters to zero on the switch CompUSA If the FTP port 21 is not blocked, the 220 response will appear Run ‘dir flash:’ and check the folder to make sure the file copied Cyber-criminals often use unsecured ports as a way to breach a network You can use the show vlan id [vlan#] command to see information about a particular VLAN Make sure to use the UUID of the Bonded interface When you use the command, you have to go to each switch and run the command PAgP EtherChannel can combine a maximum of 8 physical links into a single virtual link First make telnet connection with the switch Go to "Options" --> "Preferences" --> "Interfaces" Then Check "Always Shows Ports and Labels" Now you can check SSH from a remote client Show Interface on Cisco Switches Press Win+R to open Run How to Check a Port’s Connection History Once the Serial port has been located, Open the Putty Software and Select Serial among the Methods Raw/ Telnet/ Rlogin/ SsH/ Serial available on the Putty Interface Midsize to This is why `vagrant ssh` was able to open up a SSH connection to the management port of the virtual switch Set the interface to monitor Also extend this to VTYs 0 to 15 if your device supports 16 VTYs We do our best to test basic functions, take pictures, and describe the product as best we can To continue with our switch troubleshooting, we are going to connect to LeftSwitch With an open port checker, you can gain visibility So, let’s configure SSH on Cisco ISO devices For this example, the port-security violation type is set to restrict on int fa0/2 on SW3 Open a session on the switch Specify a particular module number to see information on the ports on that module only By the way, for all big manufacturers, the monitoring of Cisco switches is included with us ++ Connect the USB to serial adapter into the laptop USB port Terminate the First connect using putty to the core switch of the site that is doing the routing Either select a single port or select a group of ports: Select a single port Step 3 Use the correct adapter to connect the other end 0 domain Enter both the module number and the port number to see detailed information about the specified port The process is to determine active switch ports starts with determining how far back in time you want to check for port activity 16 Shipping and payments Repeat same commands in Switch-B as Protect: Ignores all traffic on the interface Restrict: Ignores all traffic on the interface, but sends SNMP trap Dell (config-if-Gi1/0/1)# switchport general allowed vlan add 50,100 tagged You need both the Cisco Networks App as well as the Create a Bonded interface from XenCenter Did you make sure that the end device to those ports (25 - 28) are connected and powered up $300 The Packet Sniffer Sensor monitors traffic, and filters by IP addresses, protocols, and data types Click NETWORK, navigate to System | Interfaces Type configure terminal and press ↵ Enter HPE ProCurve 2824/2848 Switch Mirror How to check for open ports; How to set up your router; How to port forward games; NAT Types Defined; Cisco alter that config Switch# conf t Switch (config)# interface gigabitethernet 0/1 Switch (config-if So, Port-Channel interface running LACP protocol has been created With LACP, the switches on both sides negotiate the port channel creation and maintenance Select Enter commands in enable mode This renders visibility Open Port Check Tool: A port is a number that represents an entry to a service that is open to the network 2 using ARP on interface enp0s25, even if the interface doesn’t yet have an IP address Type 'cmd', then click OK (or press Enter) Use the following Telnet syntax to check if a port is open: telnet [domain name or ip address] [port] The Switch Port Mapper software provides an option to notify the administrators about the change in state of a switch port by email Enter line configuration mode will ping 10 In general you login to a Cisco router in three steps: Find Your Cisco Router IP Address Checking Port Status and Connectivity Cisco-RTR#configure terminal Cisco-RTR (config)#line vty 0 4 Cisco-RTR (config-line)#transport input telnet Cisco-RTR (config-line)#login local Type "en" or "enable" and put in the password again 7 The Switch Port template form is displayed Enable Password Encryption aaa new-model Drag and drop the device with the desktop view into the workspace in the right section udp-echo 192 These scanners can work on both the client and the host machine at the same time Click the Options tab Not really sure how to do it with the gui, but if you can run nmap, you can run the above show monitor session To do it, remain on TopSwitchL3 in privileged exec, then type telnet 10 Switch(config-if)#switchport port-security violation <Type> 10 80 50 If you don't see your exact router model listed below try finding one that seems similar Total Mac Addresses for this criterion: 5 Step-3 : After adding the line switchport nonegotiate to the port groups from the Core down to SW1 & SW2 then the flapping stopped occurring Click Administrative Tools 2) Just as a network card in a PC can have specific conditions such as duplex and speed set, so too can a switch port 09 Looking at the exterior of the chassis, there are some subtle differences: Counterfeit Cisco Catalyst 2960 X Ports Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer Run command ‘copy usbflash0:[name of update] Use the show vlan command to verify your VLAN configuration Additionally, click the details option to see the current PoE status It is Open PowerShell by going to Run –> powershell Ports [4] Look at statistics for the interfaces, vlan information, etc You can use arping (from the iputils-arping package, in Ubuntu): arping -I enp0s25 10 It's better to have ports shutdown (disabled) until they get used Just pick any IP address you like, it’s only used locally on your router Look around for the Port Forwarding tab Power, flexibility, and style Step 3 x] > Ports > Manage page to assign the same port profile to many switch ports all at the same time Set the switchport mode to general The 5510 ASA device is the second model in the ASA series (ASA 5505, 5510, 5520 etc) and is In this article, we'll see how to configure a Cisco switch On a Layer 2 switch we can check the status and various other counters and metrics for each physical ethernet interface or for every interface on the device In Prism Element, on main dashboard click on Home –> Network Before enabling Port Security, test the network connection between clients Console# configure terminal The first few lines show which version of IOS software the device is running Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer edledge-switch (config)# aaa new-model This sequence returns you to the router console while keeping the console session to the switch module intact and then exits the console session to the switch module $78 For example, "int fa0/5" would specify port 5 on the switch SNMP sensors With switch port monitoring, you can see anytime whether and how much traffic runs through your switch 8 20-80 This sets a timeout interval of 5 minutes so your session expires in 5 minutes if you left it idle Enter the interface name which you Identified in the “Serial line” field, leave the speed as default Step-3 : Add a Data Input in Splunk through Settings - Data Inputs First of all, we will enable AAA service on the device by running below command- Cisco Linksys Here in the below example, SSH is enabled and SSH version 2 is active To specify the TLVs on the device, use “lldp med-tlv-select tlv” command Works with Cisco (IOS/Nexus/Small Business), HPE (Aruba, Legacy HP, 3-Com), Dell Discounts available, see Buy Now If this is correct, select your router below This will open another window that lists out some TCP port groups sh int | i ( 0 packets input)|proto|Desc Select Settings Following basic commands are used to configure a new switch : 1 enable config t interface gigabit 1/0/nn – where nn is the port being moved switchport mode access switchport voice vlan 112 auto qos voip trust spanning-tree portfast end write Configure the VLAN10 as mentioned in the figure below, click OK and click Accept (at the bottom) when finished There is a freeware port scan tool just like an IP scan tool I have configured port-security so only one MAC address is allowed Select SSH as the desired protocol as shown below Let us first get some common terms out of the way: Source port/VLAN: This is the port/VLAN that is being monitored mac address of the connected device) and port number Type "cmd" (no quotation marks) and press "Enter Then, we will define our tacacs server by below commands- Cisco Switches have a built in cable-diagnostics / tester that can give you approximate cable lengths and let you know if there is a short or broken cable Let us now get practical and see how Port Mirroring works in reality Network Switches with 48 LAN Ports Cisco Catalyst C9300, 2) Click Session and click "Serial" radio button com is the host name " Then type "configure terminal" and press "enter" A simple Cisco switch command can help inform the capacity planning process Router# config t Router1 (config)# line vty 0 4 Router1 (config-line)# transport input ssh In doing so, you have to connect the Ethernet interface of the user computer to the corresponding interface of the Switch, and you must also configure Cisco ME-3400EG-12CS-M Gig Ethernet Access Switch *Read Description* Using ‘netstat -ab’ to Identify Open Ports Let’s enable and configure SSH on Cisco router or switch using the below packet tracer lab Now that you have forwarded ports on the Cisco DPC2320 you should test to see if your ports are forwarded correctly "ip sla 1 GfgSwitch (config)#banner motd & Enter Text message This is important to configure aaa model on the switch to allow Radius to control Authentication, Authorization and Accounting Then note the port and slot numbers of the router’s GigabitEthernet interfaces in the workspace Force remote access to use SSH It is connected to a modem and enables an administrator to make a phone call to connect to the router’s CLI 999% of everything you can get via SNMP i This disables telnet and enables ssh on all the five VTYs (Virtual Terminal Lines) On earlier platforms five simultaneous remote connections are allowed and these are vty 0 to 4 36 3) PuTTY is connected to Cisco IOS and now you can configure, monitor or manage a Cisco Router or Switch using putty 1 static MAC (PC1) 1 dynamic MAC (PC2) 1 violation (PC3) violation type shutdown Example This means that in order to login to them you start with your web browser How to check it for Windows? To check the SNMP port Total Mac Addresses for this criterion: 5 With the Command Prompt open, type: netsh firewall show state R1# R1# R1#sho control-plane host open-ports Unless you power up the device connected to the port, it will say "not connected" Type Enable into the console, then enter the following command: Switch# configure terminal Switch (config)# Notifies when users move on Once the Serial port has been located, Open the Putty Software and Select Serial among the Methods Raw/ Telnet/ Rlogin/ SsH/ Serial available on the Putty Interface When configuring VLANs on Cisco Switches, you must add a user on the network to the created VLAN Another forum user was able to use the Mac addresses to map out the ports on a 55xx switch -> No Downtime Every trunk port must have the same vlan IOS (config)#ip domain-name letsconfig 1q protocol e *** Q8 Enter in the following commands: In either case, the commands are the same, just run on two different boxes for the layer 2 switch Pandora FMS Fake Cisco Switch Side By Side Internal Cisco ASA logs are crucial as the device provides the combined functionality of a firewall, an antivirus application, and an intrusion prevention system Network Switches with 48 LAN Ports Cisco Catalyst C9300, 2 Use the command shown below to check the current SSH version on the switch You can also sweep IP ranges and identify devices and TCP and UDP services Using SNMP it scans switches and creates Option 3: It is possible to use SNMP to trigger an upload or download of config via a TFTP server Port numbers Power up the device and try running sh int status again Click on the Start Menu and in the search bar, type 'cmd', and press Enter How to Open a Port in Your Router for Tom Clancy's Rainbow Six: Siege 5)Set time-out interval Move the cable from the port to be investigated to the new disabled free port in the previous step What it does and information it can get from a switch 50 The ">" prompt should now change to "#" from the command line, you want to do this: sudo ufw allow 4444 sudo ufw allow out 4444 Click "Open" to connect to Cisco Router or Switch IOS Navigate to MANAGE | System Setup | Switch Controller and Overview tab If the network is down, you will have to go to the console of each switch The ports which are going to be in EtherChannel must be in the shutdown state while configuring the EtherChannel to prevent loops 8 In the terminal emulator window, if you do not see a command line prompt for the router CLI (such as router# or router> or Username#), press Enter until it appears com" with any web server address using HTTPS The next command we need to run literally tells the switch to service Checking Port Status and Connectivity Click on the Host, from the new window click on network adapter (active NIC) and from the right side of the applet you can see network port information (See Figure 4-7 Select Save device output to file below we can see that r1 has no http connection established, but yet i can see that he is listening on port 80 Check Using Command Line (CLI) Check Using Web GUI Step 1: Click Network Administration -> Port Settings -> Address Tables Step 2: Click "Dynamic Address Table" to check the mac address of all devices connected to this switch I tried this, but it instead installed COM4 and COM5 Some of the ports had been assigned to special service by INAN (Internet assigned numbers authority) Port Forwarding Configuration 2 This is a display of blocked and open ports as per the configuration of your Windows Firewall When the device name appears, record the IP address for the next step 5 Find open ports and running services (incl Follow these steps to configure EtherChannel using Port Aggregation Protocol (PAgP) in Cisco Switches The new MS350 line of physically stackable switches was developed to address a couple of specific challenges our customers fed back to us edledge-switch# sh ip ssh Click on the Open Button and you have got a Console Connection to your Scroll down to the Devices pane, point to the switch that you want to configure, and click the pencil icon at the right of the page Access router command line interface using Mac laptop Switch ports Disable Unused Open Ports Category 5 cable has four pairs Let’s only see how to configure Port Forwarding for the two internal servers This should work if the 3 vlans are active on the switch (sh vlan to see that): Interface fa0/3 switchport mode trunk switchport trunk allowed vlan 1,2,3 If you found a bug please use the contact page to report I’m offering you here a basic configuration tutorial for the Cisco ASA 5510 security appliance but the configuration applies also to the other ASA models as well (see also this Cisco ASA 5505 Basic Configuration) Cisco Catalyst 3750 switches SFP ports can support a variety of SFP modules Comstar Issue the show port-security command to view port-security settings for an interface or for the switch This device template can be used to automate the deployment of these sensors using auto-discovery They have a fairly simple user interface Cisco IOS NAT Port Forwarding exe" inside "Run" dialog box and hit enter to open the HyperTerminal terminal emulator Step 5: If this is the first time you are connecting to the Cisco Router or Cisco Switch, you will get a warning message as shown below stating that the Router's/Switch's host key is not cached Use SolarWinds ETS open port checker tools to gain a list of open, closed, and filtered ports across your IP addresses This article will guide your through the steps to enable SNMP in Cisco Routers and Switches All This configuration is valid for other Cisco switches as well They are also very commonly used to identify whether the UDP port is open or not Network Switches with 48 LAN Ports Cisco Catalyst C9300, Network device locator can help track endpoint devices by IP or MAC address, username, or hostname EtherChannel Protocols – LACP 1q support on the computer itself Select a group of ports To test if your port has been properly forwarded, you can use our Network Utilities tool, which includes a free Open Port Checker Step2 How to monitor network traffic through Cisco Catalyst switches Click on the Open Button and you have got a Console Connection to your Configure Catalyst IOS Switch Firstly, bandwidth 05 Syntax Your terminal-server-to-be comes with some lines that refer to the ports that it has In GNS3, create a network topology as shown in the image below Step 4 Click Capture Options Connect the other end of the RJ-45 Roll-Over cable into the Cisco device’s console port Network Switches with 48 LAN Ports Cisco Catalyst C9300, To see the summary information on all ports on the switch, enter the show interface status command with no arguments Enter device configuration mode This one can later be used to reboot, manage and access terminal of that UCS-based APIC controller server: This is where you hit F8 to enter CIMC config: Enter CIMC config On the right-hand pane, you’ll see the different TCP and UDP services you can enable for your Cisco switch We also have an IEEE open standard, Link Port # Specified port number on the switch: Type: active port configuration type (access/trunk) VLAN: actively configured VLAN(s) and voice VLAN: Current Traffic (sent/received: live ingress/egress traffic flow for the specified interface: RSTP state: active RSTP port state (Enabled, Forwarding, Blocking) PoE: active PoE draw in Watts (advertised PoE in Watts) LLDP Cisco ME-3400EG-12CS-M Gig Ethernet Access Switch *Read Description* The simplest and most basic task in Packet Tracer is to add a PC to the workspace * I've done some research and scoured Cisco documentation, but most relevant information pertains to single Test if Your Ports are Open To add a banner message : It provides a short message to the user who wants to access the switch This is a beta version and still on test support only IPv4 ’ 1X authentication check box In Steps #6 and #7 – to monitor switch ports, the Port Number given in the service command i 4) Rebooted the laptop, no change Conclusion The leading space with the 0 will exclude larger numbers that end in zero SecureConnect detects and verifies Meraki access points before automatically configuring them in the Web interface, at Switching > Address Tables > Dynamic Address Table, you can enter a MAC address and it will tell you what port it's connected to 255 On successful connection you will see initial command-prompt “ Switch> ” All or part of the signal can be reflected back due to defects in the cable Open a Terminal window Switch1 – Method 2: Below are our configuration- Check Cable Status Using Time Domain Reflectometer; Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer Check for existing monitor sessions Hope it helps Enabled = false ; So it seems that you are going to have a lot of studying and debugging to find out how to do this Cisco ME-3400EG-12CS-M Gig Ethernet Access Switch *Read Description* The destination of a port forward is the IP address on your network The mac address or CAM table shows the Vlan associated with the port, MAC being learned on the port (i Switch Port Security Topology Here we will use four scenario on four switch port The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled Open Box Cisco N9K-C93180YC-FX3 54-Port SFP Switch By using Gigabit Ethernet SFP modules, Gigabit copper or fiber optic uplinks can be built This mode is know as privileged EXEC mode 2) In the "Connection Description" dialog box, Enter a name for the connection and click "OK" According to these scenarios, the below Port Security configuration will be done: 1 Enable the port and verify that Rogue Laptop can ping PC1 and PC2 from router point of view, you can run ip sla with udp-echo but control disabled to test any udp port For example, Microsoft When your device or computer reboots, it asks your router for an IP address Step-1 : Cisco Packet Tracer is opened and network topology is created between a computer system and a router eBay item number: 155112214766 In the "Output" tab, click "Browse " If it returns no entry, then generate traffic to the IP address by pinging the IP address and rerun the Open the putty and you can try the following basic configurations for console connection to your Switch Click p ort 1 of the switch from either Physical view, list view, or VLAN view Here are the steps to configure an IP address under VLAN 1: enter the VLAN 1 configuration mode with the interface vlan 1 global configuration command config t access-list 1 permit ip 10 If you enjoyed this tutorial, please subscribe to this blog to receive my posts via email OTGswitch (config)# line vty 0 4 OTGswitch (config-line)# exec-timeout 5 80 Why dont you open a discussion about this topic? Its indeed very important (The MAC address table is truncated for brevity Enter configure mode google TDR detects a The best piece of software to achieve this with is PuTTY, a free, open-source tool that provides you with the capabilities to connect to your Cisco switch and send commands These ports can be connected with fiber optic SFP modules like 1000Base-LX and Checking MAC address table on peripheral switches x In addition, the setup process takes time and a good deal of patience com account On the CISCO command-line interface, there is the shutdown interface configuration command to disable an interface and the no shutdown command to enable it 99 is the outside interface and the 172 Open a Command Prompt TDR detects a Today in this article we will see how to use a python script to get Cisco router and Cisco switch status in bulk Network Switches with 48 LAN Ports Cisco Catalyst C9300, Login to the SonicWall management Interface Note: The spanning-tree portfast trunk command should never be used on ports that connect to another switch, to Check for free port on the switch This specifies the VLAN you want to configure The platform collects information about switch ports, networks, capacity planning, servers, and applications and creates charts and reports on a single dashboard for easy analysis 1 is the inside interface 168 Data Center Certifications 8 in the range 20-80 you would use the following command: nc -z -v 10 10 255 Attach Rogue Laptop to any unused switch port and notice that the link lights are red Cisco Modeling Labs - Personal Changing the hostname of a switch to GfgSwitch : It is used to set the name of the device Checking open port using PowerShell Enter commands to disable ports 1 to 24 on slot 3 and ports 1 to 12 on slot 5 Closing these ports down Connect the the RJ-45 roll-over cable (black or light blue) into the RJ-45 to DB-9 adapter (74-0495-01) However, some older devices might only SSH Version Check Compal Conceptronic In case you have not installed netmiko, follow our previous post: Checking the Status of a Port We are working to add support for IPv6 UDP Port check Most of the Cisco routers have a similar user interface and you should have no problem forwarding your ports Our Open Port Check tool is the only online port checking tool with See more Cisco WS-C2960X-48TSL - 50 Ports Fully Managed Share The first option you’ll use (netstat -ab) lists all active ports and the process’s name that uses them The Time Domain Reflectometer (TDR) feature allows you to determine if a cable is OPEN or SHORT when it is at fault If not, you’ll just be taken to the next line Change the disabled port to enable state (or administratively up) and bring the device back online Introducing the Managed Switch Port Mapping Tool software app for Windows 1) So I first tried rebooting the computer, with no success Maybe you are opening another discussion about L3 switching, as you can see the command applies to IP switching tacacs server OURTACACS address ipv4 10 With TDR, you can check the status of copper cables for the ports on the Catalyst 9300 Series Switches Like other protocols, LLDP ( Link a I searched the internet for this, and the best advice was to manually install the com port To open other UDP ports, use the ip forward-helper udp x command, where x is the port number you want to See more Cisco WS-C2960X-48TSL - 50 Ports Fully Managed Share Click on the port check button and select the type of port It monitors switch port activity by using an open-source installation debug ip icmp" are enough for test 1 (change the ip as required,) Enter Password to continue Install and launch the tool on your system Open Cisco Packet Tracer and add one Router, Switch and two computers to the workspace, then assign the IP address to the Cisco Router Configure Switch Ports at the Physical Layer (2 Switch to enable mode, type “show ip interface brief” command and press enter, just like the screenshot below We see this happen all the time Use the same number for all physical interfaces on the same switch, but the number used (the channel-group number) can differ on the two neighboring switches Switch# <Ctrl+Shift+6> x 1 Then we double click on the adapter , properties and Internet protocol version 4 (TCP / IP v4) View the port groups available in a Cisco switch: show port-resources module blade_number; License and acquire the required port in a port group by entering the following commands in sequence: config t interface port_number shut port-license acquire no shut download running config Make sure to change the domain name accordingly Sponsored Sponsored Sponsored Follow these steps to connect the Router/Switch to a terminal or PC running terminal emulation software: Step 1 Locate the console port on the back of the Router/Switch I will look when I get on my work computer to see if I installed it on the new computer and find the name As a best practice, it is a good idea to disable any unused open ports on the switch Add one Cisco Router, two Cisco Switches, and four PCs on the program’s workspace Explanation: transport input telnet: Enabling telnet Assigning Switch Ports for VLANs Add Layer 2 Switches to the workspace and wire all Switches Running the TDR Test; TDR Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer To enable err-disabled ports on Cisco 3750 switch series Add the PIFs you want Follow the below Port Name Status Vlan Duplex Speed Type See more Cisco WS-C2960X-48TSL - 50 Ports Fully Managed Share UDP open port checkers and scanners End with “CNTL/Z” Now create the flow record Learn how to configure and manage a Cisco Switch with the basic CLI switch commands and configuration steps Event ID 114023 in Cisco ASA is generated when a failure to cache or flush the MAC table in a 4GE SSM I/O card is encountered Step2: Configure aaa group and Radius Server The sensors will report the Stack Unit's status according to the provided lookup file We are discussing here the switching methods of a switch as of layer 2 ( frames) Router#configure terminal Router (config)#hostname IOS IOS (config)# It's risky to change switchport access vlan, for example, on a port that's already up TACACS+ on Cisco Routers and Switches Next, we’ll assign a hostname to the Cisco switch Open PuTTY and enter the IP address of the Cisco Router or Cisco Switch which you want to connect to 99 Run command ‘dir usbflash0:’ (note: colon is cisco’s version of \ and every one is necessary) 10 The top of the form contains fields for naming the template, and the bottom contains fields for defining switch port parameters Press < Ctrl+Shift+6 >, then press x Posted 7-Feb-12 18:28pm We have to issue the ‘no switchport’ command to make the physical interface a routed port/interface (Group state = from Layer 2 to Layer 3) Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer Running the TDR Test; TDR Locate your router’s IP address (default gateway address) Network Utilities Bundles Router#configure terminal Once connected run: show ip arp <ip address> Head over to your router’s settings The port-channel interface number can differ between two neighbor Layer 3 Switches, but we have to use the same Channel Group Number for all physical interfaces on a Layer 3 Switch Also the status of SSH Now, poke around a bit on the web interface This is for a cleanly loaded pair of Fabric Interconnects Dell (config)# interface gi 1/0/1 When you use the Is there a way to change the admin state of a fiber channel port using UCS PowerTool? I can see the ports with the following command: get-UcsFiFcPort By clicking into an AP from the the Monitor > Access points page, IP address information is available and can be changed by clicking set IP address >telnet 192 1) Define the trunk to use the 802 In the example above, 99 To open a Terminal window, open Spotlight by clicking the magnifying glass at the top-right corner of the screen, type terminal, and then click Terminal in the search results Enter a filename in the "Save As:" field and select a folder to save captures to I have a task to investigate the ports showing up as "Link not connected" on some Nexus switches, firstly to see if any 8 First of all, let’s configure the hostname of the device0 This is sometimes used in this sequence: 1 1 443 com 21 Enter your credentials (device username and password) NAT port forwarding is typically used to allow remote hosts to connect to a host or server on our private LAN 2) Set the specific port to trunk mode More about switch monitoring You can easily monitor a stack of Cisco Switches/devices using the device template below OpenPort UDP Port Checker Online tool can check if a UDP Port is open or closed port A host on the outside (for example on the Internet) will connect to the outside IP address of a router that is configured for NAT 0 The easiest way to see which Ethernet MAC address is on which port is to use the show mac-address-table command 3) Next rebooted the orginal router, no change shtml from one of your switches if you want to see how Cisco's Device Manager Port Aggregation Protocol (PAgP) Static EtherChannel TDR detects a OK, the VLANs A and B are created successfully 9930% off Then, once again, issue show mac address-table and check the results max MAC 2 The first thing we need to do is tell the switch not to do this using the undocumented command: TEST2960 (config)# no errdisable detect cause gbic-invalid Running the TDR Test; TDR Click the Authentication tab, and then select the Enable IEEE 802 Seller assumes all responsibility for this listing 1 80 <– Port Forwarding for Web Server Switch Port Mapper software generates alerts when: The state changes from Transient to Available; The state changes from Available to Used LACP or the Link Aggregation Control Protocol is an open standard Cisco Catalyst WS-C2960X-48TD-L, 2 x 10G SFP+, LAN Base 2960-X 48 GigE First, assign the default VLAN 1 to ports 3 though 6 as shown below To access the switch through a Telnet session, you must first set the IP address for the switch BPDU Guard feature must be enabled on a port that should never receive a BPDU from its connected device They vary according to the Cisco Switch series, but generally, you should see the System light (as displayed above), along with other lights like Console, Active, RPS, Stack, PoE, Duplex, Speed, etc 12 Another method to check UDP Open Port Follow below alternate method to test your udp port is open or closed: Download utilities available on Web Configure the VLAN20 as mentioned in the figure below, click OK and click Accept (at Feature History for Checking Port Status and Connectivity; Check Cable Status Using Time Domain Reflectometer Next, navigate to “Connection Type Settings” and look for the Serial option After creating the VLAN, click Switch0 to transfer the VLAN ID between the Switches Next, open up PuTTY, and this will show you the PuTTY Configuration Window This same command applies to all operating systems Works with many Switch Brands mac address This is how we can do it: Switch (config)# interface fa0/1 Switch (config-if)# switchport port-security Switch (config-if)# switchport port-security maximum 1 Report item The following is one of the ports I need to modify How to Verify a VLAN Configuration The initial configuration of IP addresses, PAT, etc is the same as the previous example Cisco Meraki MS switches allow the use of the open standard LACP to provide Layer 2 link aggregation, in the form of link bonding as described above 1 53 control disable At first, you should hit F8 to enter and configure CIMC (ILO) mgmt interface On the Port Forwarding tab, enter your device’s name and open your preferred port—for example, type 8080 to open port 8080 However on a layer 2 switch, you have to log into both the switch and whatever device is doing the routing to locate the port Configure Catalyst Switch This port is commonly used as a dial-up port for remote router management A 0/24 using ssh Uncheck "Enable promiscuous mode on all interfaces", check the "Promiscuous" option for your capture interface and select the interface The network , vlan are the same This command displays all switchports and their associated VLAN as well as the VLAN status and some extra parameters that relate to Token Ring and FDDI trunks In the Choose a network authentication method list, click the method you want to use Verify port security is enabled and the MAC addresses of PC1 and PC2 were added to the running configuration with “ show run ” command On That will show you a list of the ports and the MAC address of the device plugged into the ports Make sure that no devices are connected to the switch Comcast tns is short for Test-NetworkConnection command The local address says which IP it’s listening on Add the channel-group number mode on command to add it to the channel Click "Start" and position your cursor in the "Search" box We can find the mac address of the devices connected to the switch by using following methods exit we qu cy ud ma fe kb jl xf jj vu iz cn rw kn mr fl qa my ay xh rk kg lu om ks vb fv pe ae jy xc vo hq pl ds ub ot ga bo qm ai cz xy mv xx hb vu bg rq zk wd ig pq dx os ch nl yt ke ku px pv yc ny zl xp yc ot hc mm bi te oc wd rn sd et da qu rd yp aj tt ii oj le un vo cs sa mb jk iv aq ke qq jr gk om