%IP_SNMP-4-NOTRAPIP: SNMP trap source GigabitEthernet0 has no ip addre

[santoshrijala12]

I have few WLC having configured as :

%IP_SNMP-4-NOTRAPIP: SNMP trap source GigabitEthernet0 has no ip address errors on WLC logging and it was working fine before, actually there are similar WLC with same config are also working fine.

I have configured Gig 0 as:

interface GigabitEthernet0
vrf forwarding Mgmt-intf
no ip address
shutdown
negotiation auto
end

and I have vlan configured as: 

Current configuration : 112 bytes
!
interface Vlanx00x
ip address 1x.XXX.X.XX /24 secondary
ip address 1x.xxx.x.xx /24

and got a error as recently and others WLC are working fine.

my show ip int br ouput as:

GigabitEthernet0 unassigned YES NVRAM administratively down down

but similar config is working on other WLC.

what might be the issues for this?

[Jens Albrecht]

Hello @santoshrijala12,

your post raises a couple of questions:

• what is the hardware platform of your WLCs?
• which software version are running on your WLCs?
• do all WLCs have the same interface Vlanx00x network?
• are the management station(s) located within this network?

There are known limitations for SNMP as the WLC will default to the management interface if the management station is not in the same network as the configured interface Vlanx00x.

HTH!

[Leo Laohoo]

conf t
 snmp-server trap-source vlan x00x
end

[Rich R]

%IP_SNMP-4-NOTRAPIP: SNMP trap source GigabitEthernet0 has no ip address means you have 

snmp-server trap-source GigabitEthernet0

configured in your config, which obviously is not valid.
Make sure it's configured as per Leo's suggestion.
If you have already changed it - it sometimes does not update dynamically.  The SNMP engine needs to be restarted or the device reloaded to pick up the new config.  To restart SNMP remove all SNMP config and disable SNMP, then re-apply the SNMP config.