I’ve created an IPIP tunnel between to two RG750’s, and can ping both ends from the routers. I haven’t run across anything about how to get from an ethernet port to the tunnel. Is there a ‘how to’ somewhere I’m missing?
thx
-d
Do you only want one device/port to use the IPIP link? If the routing table suggests that traffic from an ether port should use the tunnel for a given destination then it will do so.
Think of an IPIP (IP over IP) tunnel as just a routed link. You need to setup a IP on each side of the link and then either setup static routes or a routing protocol to exchange routes between the two routers.
If you want to bridge to different L2 Ethernet segments your going to want an EoIP (Ethernet over IP) tunnel and then bridge them on both sides.
OSPF seems to be getting the route between the endpoints. I can ping each end from the other from the routers. The tunnel endpoints are on the same subnet, as shown on the wiki docs. I can’t ping either end point from any other ethernet port on either router.
If the ethernet port IP address is on the end point subnet, pings time out. If it’s not on the subnet, I get ‘transmit failed’ errors.
I guess I’m missing how the packets get from an ethernet port to the tunnel endpoint.
Really a newb.
-d
Traffic passes over the tunnel via traditional L3 IP forwarding the same way it passed from a internal subnet out to your ISP. Simply setup a different network on the other interfaces. A subnet can’t exist in two places at once which is why your pings time out.
Can you tell us how you have your other interfaces setup? Set them up to look something like the diagram below. Take care that your ether1 and ether2 are not configured for switching.
https://www.lucidchart.com/publicSegments/view/53489914-b630-4762-b4ea-2abb0a008d03/image.png
Jonathan