SNMP V3 EngineID Config

[ramziabdelhak]

Hello friends,

I am trying to configure SNMPv3 on cisco routers/switches to communicate with Zabbix, and i am getting "unknown EngineId error", Some people are talking about configuring Remote user, and remote EngineId. The question is : Do i have to configure a remote user on the router itself or on the equipement sending the SNMPv3 Requests ?

If someone could explain this remote User Concept in SNMPv3 i will appreciate it a lot

Thanks in advance

[balaji.bandi]

How is your configuration looks like on the device you polling from Zabixx ?

You may need to add EngineID to work : Example :

snmp-server engineID local 11110000000000000000000

 Refer below configuration guide :

https://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/20370-snmpsecurity-20370.html

[ramziabdelhak]

From what i have read, EngineID is discovered automatically via the NMS, why it is not the case in my configuration ? is it because the router is behind NAT maybe? 

[balaji.bandi]

By adding EngineID and polling not harm for trying here.

is it because the router is behind NAT maybe? 

this is new information you added here comparing with orginal post - If the router is behind NAT - you may be doing NAT Translation right ?

[ramziabdelhak]

The NAT configuration is correcte, the router is already being managed via SSH with this configuration, i am only seeing the error "unknown EngineID"

[balaji.bandi]

understand that NAT working ...For testing add engine ID and  testing is moving forward.

[ramziabdelhak]

okey, i will includ the EnginID on the NMS configuration, and let you know if it is working

[MHM Cisco World]

Try this way

Show snmp engine id 

The value you get 

Use it with snmp server engine id remote 

MHM