Determining the serial number of a router

[JUSTIN LOUCKS]

I am trying to document the routers at all of my remote locations. I was hoping to be able to gather the serial number of the routers remotely through the CLI so that I can determine if they are under currently supported under a Cisco service contract or not. Is there a command that I can use to do this? I thought that the 'show diag' would display it, but the serial numbers there do not match the ones on the back of the router from what I can tell.

Thanks,

Justin Loucks

[rmushtaq]

For routers, you first need to add the chassis serial number manually in the router config via CLI using the command "snmp-server chassis-id ". Then if you use the 'show snmp' command, you'll see that serial number in the output:

Router#sh snmp

Chassis: 1234567890 <----!!!

Contact: Foo

373698 SNMP packets input

0 Bad SNMP version errors

[stevek1]

Pls also note that the serial number output in the show version is that of the mainboard.