The amazing thing to me is, this far into the 21st Century, this is still the only way I could find to get this information - i.e. It's worth noting that on some Cisco devices the command 'show mac-address-table' also works. If successful it should look like the picture. Next type the command 'show mac address-table'. Next enter 'enable' mode on the switch by typing enable. A MAC address entry contains the destination MAC address, VLAN ID or VSI, outbound interface, and entry type.
#Show mac address table command password#
Also, 'sh ip arp | i 0/24' will show just the MAC address(es) on that port.) On the layer 2 device (switch) enter the username and password if needed. The display mac-address command displays the MAC address table of the switch. It's very handy to be able to remotely find exactly where a device is connected. show mac address-table i aa:bb:cc:dd:ee:ff. Verify that the MAC address table was cleared. S1clear mac-address-table dynamic Step 5: Verify the results. To remove the existing MAC addresses, use the clear mac-address-table command from privileged EXEC mode.
The format of the virtual MAC is 00-1B-17:00: xx: yy where. Example command from other manufacturers. S1show mac-address-table addressIf you're all Cisco, 'show cdp neighbor' (or 'sh cdp nei') will get you to the next switch. HA1 IP Address: 1.1.1.1 HA1 MAC Address: 00:30:48:5d:0c:c1 HA2 MAC Address: 00:1b:17:01:14:06 On the 元 interfaces, the MAC address listed for an interface using the command show interface all for an HA cluster are the VMAC. The keyword dynamic limits the display to the MAC addresses that are learned as the switch operates. Syntax show mac learning-limit interface interface Command Modes EXEC EXEC privilege Command History Example Figure 146 show mac learning-limit Table 31 show mac cam Information Field Description Slot Lists the active line. The show mac-address-table command Use show mac-address-table dynamic to view the mac-address-table entries on a switch. (Small tip: When you see a large number of MAC addresses showing up on a single port, there's a switch on that port into which those MAC addresses are connected. show mac learning-limit FTOS Command Line Interface Reference, version 6.5.1.0 379 show mac learning-limit View MAC address learning limits set for various interfaces. It helps to Ping the subnet's broadcast address (e.g. :^D After beating Google to death over it, hoping for some useful tool, I ended up using exactly the same process (plus the online MAC address lookup to ID the device manufacturer), so I can affirm this works perfectly, if you work it.Īs you can see, the 'sh arp' or 'sh ip arp' commands also give you the MAC addresses, so essentially the 'sh mac add' is only to get the port in which the device is connected. Thanks for posting this *after* I finished a "What's Connected Where" jihad on our network.
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