Hello,
I am using RIPng (RIP Next Generation). I am comparing it with RIPv2 (RIP for IPv4) and I found some differences.
I did the following lab:
10.0.0.2/30 2.2.2.2/24 2001:db8:5:5::2/64 2001:db8:2:2::2/64 E0 E1 ---------------------------- R1-------------------------------------------------------- R2------------------------ E0 E1 2001:db8:1:1::1/64 2001:db8:5:5::1/64 1.1.1.1/24 10.0.0.1/30I put a sniffer between R1 and R2.
R1 is advertising over E1 (IPv6): Route=2001:db8:1:1::/64 Metric=1 Route=2001:db8:5:5::/64 Metric=1
R2 is advertising over E0 (IPv6): Route=2001:db8:2:2::/64 Metric=1 Route=2001:db8:5:5::/64 Metric=1
I am supprised to see that R1 advertise route 2001:db8:5:5::/64 in the internal network (network between R1 and R2). So does R2 with the same route (2001:db8:5:5::/64) in the internal network.
For IPv4, I have the following results: R1 is advertising over E1 (IPv4): Route=1.1.1.0/24 Metric=1
R2 is advertising over E0 (IPv4): Route=2.2.2.0/24 Metric=1
As you can see, 10.0.0.0/30 is not advertising by R1 and R2 in the internal network. So why IPv4 does not advertise 10.0.0.0/30 in the internet network, and IPv6 advertise 2001:db8:5:5::/64 in the internal network?????
Also, for router R1 network 2.2.2.0/24 is 1 hop away. But for R1, network 2001:db8:2:2::/64 is 2 hops away. I think both networks (2.2.2.0/24 and 2001:db8:2:2::/64) should be 1 hop away from R1!!!!
Can someone help?????
Thank you very much.
Eric.