SNMPv3 Setup - Cisco 3750

Question

I am not a network guru by any means but need to setup our router/switch to use SNMPv3. I am installing What's Up Gold on our system and configured the settings (changed for this post) as follows:

Username: testusername
Authentication
Protocol: sha
Password: testpassword

On my router, I have ran the following:

snmp-server view TESTVIEW mib-2 included 

snmp-server group TESTGROUP v3 auth read TESTVIEW 

snmp-server user ALL TESTGROUP v3 auth sha testpassword 

snmp-server host 192.168.12.2 version 3 auth testusername 

snmp-server host 192.168.12.2 informs version 3 auth testusername

After inserting these commands, I go back to the SNMP software and attempt to discover the seed address 192.168.12.254, the gateway, but cannot receive a valid connection. I turned debugging on the router but receive nothing in show log. I setup SNMPv2 to test and see if it could even see that and it worked just fine...I am guessing I am missing something in my router configuration...any ideas?

It isn't clear what error message you're receiving or what application you're using. Can you give it a go with [snmpwalk](http://www.net-snmp.org/docs/man/snmpwalk.html) and then tell us what error message you're getting? Here's an example of what a [simple setup](http://networkengineering.stackexchange.com/questions/6844/snmp-configuring-enabling-snmpv3-on-cisco-ios-and-snmp-agent/6846#6846) looks like. — Ryan Foley, Jun 06 '14 at 16:22

score 2 · Accepted Answer · answered Oct 21 '14 at 12:47

2

I think your username is wrong in your commands, try substituting testusername for ALL

snmp-server view TESTVIEW mib-2 included 
snmp-server group TESTGROUP v3 auth read TESTVIEW 
snmp-server user testusername TESTGROUP v3 auth sha testpassword

answered Oct 21 '14 at 12:47

glallen

362
4
14

score 0 · Answer 2 · edited Nov 20 '14 at 21:15

I agree with glallen that you should be substituting testusername for all in your snmp-server user command.

But if that doesn't work, for troubleshooting purposes, I would start with a more basic SNMPv3 configuration, see if it works and then start adding a more complex configuration from there.

My suggestion start with:

snmp-server group TESTGROUP v3 auth
snmp-server user testusername TESTGROUP v3 auth sha testpassword

per: http://networklessons.com/network-management/how-to-configure-snmpv3-on-cisco-ios-router/#ixzz2rzU2BWJa

SNMPv3 Setup - Cisco 3750

2 Answers2