It stops at my tunnel endpoint 2%5 time=0.814 ms 16 bytes from 2001:4dd0:ff00:xxx::2: Echo Request 16 bytes from 2001:4dd0:ff00:xxx::2, icmp_seq=1 hlim=64 dst=2001:4dd0:ff00:xxx::2%5 time=1.467 ms 16 bytes from 2001:4dd0:ff00:xxx::2: Echo Request 16 bytes from 2001:4dd0:ff00:xxx::2, icmp_seq=2 hlim=64 dst=2001:4dd0:ff00:xxx::2%5 time=1.652 ms --- 2001:4dd0:ff00:ab8::2 ping6 statistics --- 3 packets transmitted, 3 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.814/1.311/1.652/0.359 ms ###### ###### [6/8] Ping the IPv6 Remote/PoP Inner Tunnel Endpoint (2001:4dd0:ff00:xxx::1) ### This confirms the reachability of the other side of the tunnel ### If it doesn't reply then check your interface and routing tables ### Don't forget to check your firewall of course ### If the previous test was succesful then this could be both ### a firewalling and a routing/interface problem PING6(56=40+8+8 bytes) 2001:4dd0:ff00:xxx::2 --> 2001:4dd0:ff00:xxx::1 So there is no respponse from my endpoint. Strange, isn't it. Tom