Hello
my problem is that 3 routers are connected via 2 L2TP tunnels.
Tunnel 1: R1 → R2 (10.0.0.2 → 10.0.0.1)
Tunnel 2: R3 → R2 (10.0.1.2 → 10.0.1.1)
Connections via these tunnels are working fine, I am able to ping subnets on R2 from both routers R1 and R3, but connection through the R2 (from subnet on R1 to R3 and vice versa) is not working. There is not NAT configured, FW is disabled as well and static routing is setup. The problem is that for example R1 cannot ping 10.0.1.1. Is there something like split horizon, what is blocking traffic comming from single WAN interface to be routed there again? Routing is setup for subinterfaces (tunnels).
Thank you