We have a large number of customers where Cisco

devices have not been kept track of reliably.  I am looking for a way to run an SNMP scan that can pull specific information from routers and switches.  Particulary looking for router hostname and the management IP.  I have NET-SNMP installed and working through it but wanted to know if anyone had any suggestions on how I could scan a class B subnet for Cisco devices and report back to me the router hostnames and the mgmt IP as well as any other possible information.

Thanks!