I am working with a client who has a 1721 router with the VPN module installed who is moving his backbone from a T1 to an ethernet based solution. He purchased a WIC-4ESW to put in the router but it is not recognized by the router. System image file is "flash:c1700-k9o3sy7-mz.123-3.bin" so I think I'm OK there but the processor reports cisco 1721 (MPC860P) processor (revision 0x100) The documentation says the processord needs to be MPC860 rev B5 or greater? Do I have any options here I need some assistance. THANKS
I believe that there is a problem with the version of code on the router. According to the Cisco Data Sheet for the WIC-4ESW requires:
first Cisco IOS Software release
Cisco IOS Software Release12.3(2)XC (this is an early deployment release that will merge into Cisco IOS Software Release 12.4T)
Since your client's router is running 12.3 mainline I believe that it does not recognize or support the WIC.
See this link for further details: