I was wondering if/or what Cisco equipment can provide VPN capability over 100 MB Ethernet Fiber connections and what type of IOS to go with that?
routers: 3845? throughput?
Switches: CAT 6506? what module in a switch like that can offer VPN over 100 MB Ethernet hand-off?
The 3845 cannot handle 100MB encryption. The next one you can try is the 7200 NPE-G2 with with the VSA.
For C6506 SUP-720, you can use the SCC-400 with VPN SPA.