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I am migrating from SNMP community1 to SNMP community2 on a NEXUS switch (plus a bunch of 2960s).

Is there a way to monitor that the old community is not used anymore?

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The thing that you need to do is to erase the old community, i know that sound like you haven´t doit before, but if you do that, and only configure the new one, and on your management or monitoring software, place the new one to, you will be sure that only the community2 is in use.

You are using cisco, i guess you can debug your snmp proccess:

your_router#debug snmp packet
your_router#debug snmp request

With snmp request, i think, you can have the community name what you are looking for. With snmp packet, you will get the source ip.

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  • I don't won't to break the software that is using the old community: I want to make sure the old one is not useful to anyone. – Xavier Nicollet Nov 12 '15 at 18:40
  • Oh!!, you said that you dont know if someone is using the old community??, it is that?? – Orlando Gaetano Nov 12 '15 at 18:42
  • yes, exactly. That is why I want to monitor the usage of the old one. – Xavier Nicollet Nov 12 '15 at 18:43
  • You need do a debbuging proccess to see wich community is in use. I edited my answer on the way to add more info. – Orlando Gaetano Nov 12 '15 at 18:49

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