Saturday, October 16, 2021

Why do OSPF packets not arrive?

I am new to OSPF and multicast. I have two machines in the same L2 net (first one Linux box with bird, second one Mikrotik running RouterOS OSPF).

On station 1 I can see the OSPF Hello messages with tcpdump. But they never arrive at Station 2.

On station 2 I can see the OSPF messages as well. But they never arrive at Station 1.

Ping et.al. works flawlessly. No packet filter on Linux box. On Mikrotik, ospf unconditionally allowed as first rule (number of packets matched: 0).

Do I miss anything with multicast?



No comments:

Post a Comment