I've got a issue on IP-in-IP tunnels. I've got the tunnels up and running using the "iproute2" package (the debain package is called iproute).
I only send packages in one direction, lets say from host A --> B, and because of this I don't want it to be neccessary to run any "ip tunnel"-commands on host B (because I only want it to receive the packages there).
Is this possible? I've tried but have not been successful, host B seems to reject the packages when the tunnel has not been set up there too.
I'm using Kernel 2.4.18
A nice reference for IPIP tunnels: