Hello there! I'm currently using a Cisco 7206VXR (NPE-G1) and need to begin peering with a BGP neighbour that is using a 4-byte ASN. It looks like the firmware I'm using is too old to support this (it's from 2006!) and am wondering what IOS release is best to be using. I'm currently using 12.4(9)T1 for the IOS. The bootloader and rommon look pretty old too. Will I need to upgrade those as well? Should I be jumping right into the 15.x releases or should I stick on 12.4 T releases? Here is an output from a "show version"
Cisco IOS Software, 7200 Software (C7200-ADVIPSERVICESK9-M), Version 12.4(9)T1, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Wed 30-Aug-06 20:48 by prod_rel_team
ROM: System Bootstrap, Version 12.3(4r)T1, RELEASE SOFTWARE (fc1)
BOOTLDR: 7200 Software (C7200-KBOOT-M), Version 12.3(23), RELEASE SOFTWARE (fc5)
