very suddenly our bunch of extreme x670v, x480 become unavailable over management IP address and IP addresses assigned to different vlans.
After an hours of investigation we found that we can access them from the ip addresses of the same subnets assigned over different vlans but all request which are coming from another subnets are dropped.
the problem as we found is in TTL value assigned to the packets which are outcoming from the switch to default gw - it is set to 1. If we do 'ping ttl 10 host' it works fine.
very long time back there was one message in the logs of the 670v: Slot-2: IPv4 multicast entry not added. Hardware L3 Table full. but we don't think that is the case.
we did quite a lot of research overnight in docs and different forums - etc. nothing found.
the configuration is quite simple: we don't use any routing, bgp, ospf, etc.
Please give us clue what can cause that issue and how it can be fixed.