Hey Guys,
I have a triangle network (so three routers here) running OSPF between them. Each router acts as a ‘PPPoE-server’ and there is one master RADIUS server attached to one of the Routers. The Routers connect to the RADIUS server through each respective link in the triangle.
When one of the links goes down, all traffic is directed over the remaining link, which in theory should work fine. However, when a link goes down and the OSPF failover is initiated.. although you can ping all devices on the network, no traffic is being sent through the server.
I.e.
In this scenario there are 3 routers in a line with a user on one end and a server on the other.
USER → R1 → R2 → R3 → SERVER
The USER can ping the SERVER and all hops in between, though cannot send any traffic to or from the server (RADIUS packets) and therefor PPPoE wont work.
The normal network layout is as follows:
. → R3 → SERVER
USER → R1
. → R2 --^
In the normal configuration the USER can access the server no worries, why is all access lost when packets are being sent through the network?
Thanks,
Alex
