SNMP Interface name after update to FortiOS 5.4

[Robin_Svanberg]

Hi,

after upgrade to FortiOS 5.4, SNMP interface names seems missing. Only gets the description.

Anyone experiencing the same issue? 

Thanks.

[emnoc]

What do  you mean by snmp interface names? Any examples ?

You can query  the interface well known  ifTable  &  any part of the IF-MIB and the related  Index descriptions aliases if that what your talking about.

You can get an ideal of what the fortiOS  is doing via the following dig commands

  diag debug reset 

  diag debug en 

  diag debug  app snmpd -1

Than have your poller poll the  device index and monitor the device  snap output the debug output 

snmpwalk   -c  <community> -v2c  x.x.x.x  interface

e.g

snmpd: <msg> 47 bytes 70.195.211.101:58396 -> 192.0.1.1/192.0.2.1:161 (itf 46.46)

snmpd: checking if community "nogocmmro" is valid

snmpd: checking against community "1plus2eq2C0mun1"

snmpd: name mismatch.

snmpd: checking against community "test1234"

snmpd: request 1(root)/46/70.195.211.101 == comm 1/0/70.195.211.101/255.255.255.255

snmpd: matched community "nogocmmro"

snmpd: get-next: ifEntry.1.96 -> () -> 0

snmpd: eoq_ifEntry()

snmpd: </msg> 1

[DT]

We have exactly the same Problem.

"snmpwalk   -c  <community> -v2c  x.x.x.x  interface" does not return the interfacename.

in FortiOS 4.x all works fine, but at least on all 5.4.2 and 5.4.3 it is not there. 

[boneyard]

DT as emnoc requests can you do that with the debug enabled and share both outputs, from 4.x and 5.4.x?

[DT]

Hi,

the Solution is quite simpel (and annoying):

Fortinet has decided, that the descriptionfield is not (by definition) for the interfacename, so they have removed the interface name from the descriptionfield. If you still need it, you need to place the interface name in the comment field.