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SNMP with Cisco 3750


I want to get back the mac adresses seen in each port of the Catalyst3750 switch with the SNMP protocol.

I tried this method

but it didn't work unfortunately.

So, i'm looking for the OIDs (and MIBs) which enable me to get back the mac adresses seen in each port of the switch...

If you have any information about it, thank you by advance for your help!

(and sorry for my poor English, I'm a french guy)

Khay Huynh

Hall of Fame Super Silver

Re: SNMP with Cisco 3750

I browsed down the tree on one of my 3750's using the instructions in the tech note you referenced. Mine reports back the MAC address info as expected. For instance, reports back a MAC address value that is the same as one (of the many) I get from a "sh mac-address-table" command from the switch.

How are you MIB browsing? I used Solarwinds' MIB Browser.

New Member

Re: SNMP with Cisco 3750


I used a freeware of Ireasoning (

I think I have a clue : I read somewhere that for the Bridge-MIB, one SNMP request concerns only one Vlan. So if I specify public@1 for example, I will get back information only about the Vlan1 (in the case the read community is Public). If I try public@2, I will get back other mac adresses seen on ports belonging to Vlan2.

If I go through all Vlans of the switch, I would maybe get back all mac adresses seen on each ports...

If you have other idea, I will be thankful for your help!

Khay Huynh

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