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We have a number of old 2851 ISRs running IOS 12. I'd like to upgrade to IOS 15, but I only have 256 MB of RAM, so I can't run the c2800nm-advipservicesk9-mz.151-4.M12a.bin image.
The configuration is simple, but I do need OSPF. Does c2800nm-ipbase...
We have set up ipsec VPN tunnels using IOS (mostly 2851 and 2921 routers) between multiple locations in a hub-and-spoke topology. Everything works well except that some applications fail when traversing multiple VPN hops. In other words: Office_...
I'll reply to this myself since I figured out the solution.The solution was to use the global command "crypto ipsec df-bit clear" on the VPN router in the middle.That points to an MTU/fragmentation problem. I still don't understand why the problem o...
