> Filer -> host works
> host-> filer doesn't.
Do you have any firewalling on the filer that may prevent incoming pings? Does IPv6 ping (using the same fe80:: address) work from another source?
Couple more things that would be helpful:
- 'esxcfg-route -f V6 -l' output on ESX
- 'ip -6 neigh show' output on filer after pinging the ESX
thanks,
--shekhar