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So i used it, and it replied with many IP connect at vitual interface It lists the Vlan associated to each mac address and the interface from which the mac address was learned. Description: This command lists all of the mac addresses that have been learned by the switch. Noalias Display IP address instead of alias hostname Router show bridge-domain 730 mac security address Port MAC Address Type Rem. Important Show Commands for Cisco Switches Command: show mac address-table. Mlsrp Show cam Multilayer Switching Router infoĪnd it reply with physical port that connect to 2912 switch We have a server with multiple mac addresses and we need to know what MAC is being learned by what interface. Īnyway i've tried all command for every switch & router will summarize as the following. Show Mac Address Table in ASR9k running XR I'm trying to find a Mac Address in the ASR9k table. (^ - ^bb)Īnyway just in case you want to know the story. This will stay in the config until the switch is rebooted, so it’s important to write the config.
#SHOW MAC ADDRESS CISCO HOW TO#
I would be hugely appreciative if some one could walk me thru the process. Learn how to find systems on a network using the 'Show MAC Address-Table' command on a Cisco switch.Video notes located at. With the exception of thru trunk ports back to core. I have setup a lab with 2 Switches connected by a Trunk interface and created VLAN interfaces and allowed those VLANs in trunk. Mac address starting with 0018b9 belongs to Cisco as per MAC Vendor database. If you know the specific mac address, then you can use below command to check mac address entry for that address using show mac address-table address xxxx.xxxx. First of all checking the mac address table by using show mac address-table. After enabling, you will notice the currently connected MAC address (es) will appear in the running config: switchport port-security mac-address sticky . My cisco gear is a combo of L2 and 元, and no MAC address show up on any cisco switchports. 0018.b974.528f Mac address is learned multiple times through same port on different VLANs. To manage mac address table, we need to know a couple of commands in Cisco Catalyst switches. now i know already that the list of IP address that i got after do 'sh arp' at core router has only 1 IP that can ping so the thing that connects to the switch port is that one. switchport port-security mac-address sticky turns on the sticky MAC feature.