Cisco 7200 router and SNMP

Posted on 2004-08-26
Medium Priority
Last Modified: 2006-11-17
Hi All,
Please figure me for my stupidity but i do not have a clue when it comes to routers.

We have a Cisco router 7204. I am trying to figure out if SNMP is up and working. I have a perl script that will query the router but when run the script, I do not receive a response from the router.

How can I tell if SNMP is working?  Do I need exec "snmp-server manager" to be able to poll the router? How can I list the communities?


show snmp command displayes the following info:
Chassis: 31412513
902800 SNMP packets input
    0 Bad SNMP version errors
    1592 Unknown community name
    0 Illegal operation for community name supplied
    15 Encoding errors
    4120991 Number of requested variables
    0 Number of altered variables
    646006 Get-request PDUs
    255187 Get-next PDUs
    0 Set-request PDUs
901193 SNMP packets output
    0 Too big errors (Maximum packet size 1500)
    1602 No such name errors
    0 Bad values errors
    0 General errors
    901193 Response PDUs
    0 Trap PDUs

SNMP logging: disabled
Question by:angelmoon
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LVL 79

Accepted Solution

lrmoore earned 1000 total points
ID: 11906953
From the router, use the following command:

router#show run | include snmp

If you see something like this:

  snmp-server community <community> RO
  snmp-server community <community> RW

Then the server is running, and the community strings will be what you will need to program into your perl script..

> 1592 Unknown community name
Tells me that you might be trying to use the incorrect community name in your script...

Author Comment

ID: 11907002
I received this error
show run | include snmp
% Invalid input detected at '^' marker.

LVL 79

Expert Comment

ID: 11907054
You have to be in enable mode.
Does your prompt look like:


Enable mode:
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Author Comment

ID: 11907104
it looks like the first router>
LVL 79

Expert Comment

ID: 11907177
You need to be in enable mode:



I hope you have the enable password.....

Author Comment

ID: 11931065
Thanks very much for your help :)


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