We use OSPF and are having a strange problem where if a path goes down, sometimes it does not re-route correctly and we have to reboot a router on one end of the VPLS tunnel to fix it.
I noticed one of our routers, 10.200.0.110 cannot ping 10.200.0.240 (another router). But it works the opposite direction, 10.200.0.240 has no problem pinging 10.200.0.110.
Ok, then I try to force the Src. Address to see if I get different results. And magically if I put ANY of the IPs in Src Address then 10.200.0.110 can ping 10.200.0.240 just fine. See attachment.
I cannot figure this out. Why would a regular ping be any different then an advanced ping with "Src Address" entered? All Src addresses, from my address list, can successfully ping.
I feel like if I can sort out this ping issue I can sort out my OSPF issue.