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bwilliam's avatar
bwilliam
Icon for Cirrus rankCirrus
Mar 03, 2015

SNMP Client Not Connecting

SNMP recently stopped working with our monitoring server. Current version is v9.2 and were migrating to new F52000's running v11.5.2. Until we finish the migration I still need to monitor our current F5's. Being fairly new to the F5's. What steps can I take to trouble shoot SNMP on the F5 and establish an SNMP client connection.

 

When I scan the F5 I am able to see that port 161 is open.

 

application delivery
LTM

4 Replies

  • cjunior's avatar
    cjunior
    Icon for Nacreous rankNacreous
    Mar 03, 2015
    I do not know if I understand, but you are doing polling? You have enabled the SNMP client IP in the BigIP? Do this in the "System> SNMP> Agent> Configuration" https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/bigip_tmos_implementations_11_0_0/15.html?sr=44234123 Hope this helps.
  • bwilliam's avatar
    bwilliam
    Icon for Cirrus rankCirrus
    Mar 03, 2015

    Yeah I am polling the F5 with Solarwinds. I read the 9.2 documentation and according to what I read everything is configured correctly.

     

    SNMP Agent is configured to allow the polling server

     

    SNMP Agent access is configured for RO access, allowing the polling server and root of the OID.

     

    I just need to know next steps to trouble shoot/get SNMP working. I suspect there must be something at the CLI that can be done. Unfortunately, the F5s are new to me and V9 CLI is night and day different, as compared to V11.

     

  • JRahm's avatar
    JRahm
    Icon for Admin rankAdmin
    Mar 03, 2015

    make sure the client allow list covers your monitoring server, and that your community string is set properly for v1/v2c or v3 access. You can test locally on BIG-IP from the command line by doing a walk against localhost, and if that works, it should work remotely. If it isn't working locally, I do recall having snmp occasionally needing a restart via bigstart restart snmpd

     

  • bwilliam's avatar
    bwilliam
    Icon for Cirrus rankCirrus
    Mar 03, 2015

    These are they types of commands I was looking for Jason. I guess under the covers the F5 is really linux, but my linux skills are not the best. I did run bigstart restart snmpd with negative results.

     

    Anyway on my active F5 I ran the command snmpwalk -v 2c -c mycommunity localhost Timeout: No Response from localhost

     

    On my standby F5 I ran the same command and got all the mibs

     

    Have you got any other tricks under your sleeves?