In Vol3 Lab3 Task 3.7 we are asked to create a tunnel between R6 and R1. As expected, this created a recursive lookup. This task therefore brought up a question I have had with resolving recursive lookups over tunnels. My configuration was as follows on R6 and R1 (the distance 90 90, and adding the Loopbacks was a lab requirement):
R1 int tun 1 ip add 143.43.16.1 255.255.255.0 tunnel source 1.1.1.1 tunnel destination 6.6.6.6 router eigrp 16 net 1.1.1.1 0.0.0.0 net 143.43.16.1 0.0.0.0 distance eigrp 90 90 R6 int tun 1 ip add 143.43.16.6 255.255.255.0 tunnel destin 1.1.1.1 tunnel source 6.6.6.6 router eigrp 16 no auto net 143.43.16.6 net 6.6.6.6 0.0.0.0 distance eigrp 90 90 To try and fix the problem, which was wrong, I configured: R6 router eigrp 16 distance 180 1.1.1.1 0.0.0.0 16 R1 router eigrp 16 distance 180 6.6.6.6 0.0.0.0 16 Then I tried R6 distance 180 143.43.16.1 0.0.0.0 R1 distance 180 143.43.16.6 0.0.0.0 My question then is when using the distance command what does the "A.B.C.D IP Source Address" refer to? I would have thought that to R6 1.1.1.1 would be the "source" announcing the 143.43.16.0 networks. Thanks for the clarification, Rich
