On 2017-06-18, Marko Cupać <marko.cu...@mimar.rs> wrote: > Hi, > > I have setup similar to: > > R1 > bnx0--bnx1 > | | R3 > LAN1---carp0 carp1----------em0--em2---LAN2 > | | > bnx0--bnx1 > R2 > > How can I run OSPF between R3 and carped R1 and R2? I tried with gre > tunnel from carp1 to em0 but it doesn't work well. > > Thank you in advance,
Try this: Run ospf on bnx1 on R1/2. You will need separate IP addresses on bnx1 for each of R1/R2, you can't just use a single address on the carp1 interface. (iirc you want it like carp1 10.0.0.1/32, r1-bnx1 10.0.0.2/24, r2-bnx1 10.0.0.3/24, but it may be /24 on all of them). For carp0/bnx0 interfaces, run ospf passive on carp0, and the subnet's prefix (/24 or whatever) needs to be on carp0.
