How to configure SNMPv3 on Cisco IOS Router

[lagapidis (Lazarus Agapidis)]

Hello Brian

The inform message is not something new to SNMPv3. It is also available in SNMPv1 and SNMPv2. It can be enabled by using the snmp-server host inform command.

In the documentation you sent, it seems that Cisco has a typo. It says on page 4:

The following configuration example shows how to configure the SNMP Inform Request feature forSNMPv1 or SNMPv2:

But it has no configuration below that statement, and it goes on to show how traps can be configured.

I did see in Rene’s lesson on Introduction to SNMP, he states that SNMPv3 uses inform messages to resolve the problem of acknowledging SNMP messages. However, it is available in v1 and v2.

You may also find this post helpful:

How to configure SNMPv3 on Cisco IOS Router

Hello Chris Thesnmp-server host command specifies the recipient of an SNMP notification either as a trap or a response to an inform request. If you don’t specify the server as Rene has not in his example, you are able to connect to the router and send responses to SNMP inform requests only. Traps require further configuration on the router because they are initiated by the router itself. Informs are initiated by external SNMP queriers. I hope this has been helpful! Laz

I hope this has been helpful!

Laz