There is nothing special to do, except that you need to make sure that incoming protocol-4 traffic on your internet connection arrives at your gateway system. And with modern internet routers as supplied by providers that is often impossible. You often can forward TCP and UDP ports only, not protocols. And when there is a "DMZ" setting that promises to forward all unsolicited incoming traffic to a specified host, more and more often it handles only TCP and UDP traffic. It can be deceiving that the router often passes replies to outgoing protocol-4 traffic as part of its standard NAT function. That is not enough. It needs to pass unsolicited incoming traffic or else you will not see the RIP packets.
Rob
On 9/28/22 20:24, David Ranch via 44net wrote:
Hey Chris, Marius,
Ok, thank you for the correction though I clearly remember that "something" additional was required before RIP updates would start flowing over the IPIP tunnel other than the user just defining their gateway IP address for the IPIP tunnel endpoint. What is "that".
--David KI6ZHD