SNMP walk is not workin after update to 15.1.2

[F5_LB_Eng]

Hi,

i have upgraded to 15.1.2 . after upgrade snmpwalk is not working from standby to active device.

its work fine with version 14.1.x .

while testing i have added allowed list IP also.

error :

Timeout: No Response from x.x.x.x

[Lidev]

Hi,

Have you try to restart the SNMP daemon ? there's a bug on the snmp request on 15.1.2

https://cdn.f5.com/product/bugtracker/ID936125.html

restart sys service snmpd

Regards

[F5_LB_Eng]

yes i restarted snmpd service...still not working i tried same command in version 14 and version 15.1.0 its works fine.. only on version 15.1.1 and 15.1.2 is not working.

[Lidev]

Can you give me you snmpwalk command for syntax check ?

[F5_LB_Eng]

snmpwalk 2.9.22.1 -v2c -c SNMPCOMLAB system

[Lidev]

if you run this command below on your F5 BIG-IP, it's work's ?

snmpwalk -v2c -c SNMPCOMLAB localhost system

[F5_LB_Eng]

yes it works

local host work ..but remote host is not working...i added the remote host in the allowed list

[F5_LB_Eng]

snmpwalk -v-c SNMPCOMLAB 25.96.225.4 bigipSystem

Timeout: No Response from 2.9.5.4

[Lidev]

if you try to test a snmpwalk on remote host, you need to add IP Address of the host :

snmpwalk -v2c -c SNMPCOMLAB x.x.x.x MIB

[F5_LB_Eng]

not working...

[F5_LB_Eng]

Timeout: No Response from 25.96.225.4

[F5_LB_Eng]

the command works fine with version 14.1.2.3 and 15.1.0.3 but its not working with 15.1.1 and 15.1.2

[Lidev]

Check that the IP Address configure in allowed-list on host 25.96.225.4 is actually the management address of your F5 BIP-IP from which you send your snmpwalk.

tmsh list sys snmp allowed-addresses

[Lidev]

if the allowed-list is well configure, send ticket to support F5 maybe you're facing with a bug on 15.1.2.

[brianjmartin]

Did you ever come to a resolution on this issue. We are facing this exact same issue. The only difference being that ours our brand new i5800s on 15.1.3. All SNMP config/allowed addresses/community config is good. works from localhost but not on the mgmt ip

Note: the local attempt works on 127.0.0.1, but not on the mgmt IP when testing locally, leading me to believe that the daemon is not listening appropriately to connections from that interface.

[ARPrasanna]

Hi Brian,

its bug ID969737 - snmp requests to the management address receive no response from the BIGIP if v2-traps are used

https://cdn.f5.com/product/bugtracker/ID969737.html

to fix you can used the below one

you can move v2-traps configuration to traps then it will work.

v2-traps {

       /Common/IAS_PREPROD_1 {

           community SNMPTRAPLAB

           host 104.28.131.21

       }

       /Common/IAS_PREPROD_2 {

           community SNMPTRAPLAB

           host 104.28.131.22

       }

       /Common/IAS_SAMPLICATE {

           community SNMPTRAPLAB

           host 101.96.128.22

       }

   }

to

 traps {

       /Common/IAS_PREPROD_1 {

           community SNMPTRAPLAB

           host 104.28.131.21

       }

       /Common/IAS_PREPROD_2 {

           community SNMPTRAPLAB

           host 104.28.131.22

       }

       /Common/IASS_SAMPLICATE {

           community SNMPTRAPLAB

           host 101.96.128.22

       }

   }