Same problem for me on mint 12 and mint 13...no luck at all and I've spent
6 hours trying..I do know that most commercial routers don't pass rip packets but i've put my system direct in the dmz still to no avail, however it works right away in jnos2...
John
Routers have to pass IPIP traffic (proto 4), the RIP annoncements arrive via tunnel interface from amprgw, not directly.
Marius