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Norris04

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How do I enable SNMP on a Cisco 2620 for bandwidh monitoring?

Hi,

I'd like to use PRTG to monitor bandwidth on several segments. I need to enable SNMP on my Cisco 2620 routers. I can log into the router but don't know to much about what to do next. I do on the other hand, know enough to be dangerous. I have an idea of what to do but I'm afraid I'll mess something up in the process. Also, will I have any trouble monitoring the traffic of 192.168.x.x if I'm on the 192.168.y.y segment?

Thanks,

-Norris
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Norris04

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OK, It looks like the command was accepted, but my monitoring package will not connect with the router. When I do a sh snmp I get:

26 SNMP packets input
    0 Bad SNMP version errors
    26 Unknown community name
    0 Illegal operation for community name supplied
    0 Encoding errors
    0 Number of requested variables
    0 Number of altered variables
    0 Get-request PDUs
    0 Get-next PDUs
    0 Set-request PDUs
0 SNMP packets output
    0 Too big errors (Maximum packet size 4096)
    0 No such name errors
    0 Bad values errors
    0 General errors
    0 Response PDUs
    0 Trap PDUs

SNMP logging: disabled

Does this indicate that snmp is enabled? If not, what command should I give to show the snmp status.

Thanx!

-Norris

The error looks like they're not agreeing on the community string.  I would set it for something simple until you get it working, and then change it to be more secure.
>  26 Unknown community name

Looks like your PRTG package is trying to use something like "public" as the community string. Whever you see "public" in the PRTG config files, replace that with your Go0DPa$$Word!

"public" is typically the well-knnown default read-only community string and the first thing that anyone would try. "private" is the default read-write community string for most equipment.