I have read and followed the "Reporting Problems" section on the Contact page and am providing the following details for this report based on the list of items stated there: From yesterdat 01/12/2007 at 19:00 I can't ping my endpoint 2001:1418:100:1d4::1/64. Tunnel was up for 58 days. I'v control if protocol 41 is open and my pc accept icmpv6, bat i can't receve no answer from sixxs enddpoint. tcpdump says that my pachets pass through my tunnel interface, bat i can't receve no answer from sixxs enddpoint. root@andromeda [~]# ping6 2001:1418:100:1d4::2 PING 2001:1418:100:1d4::2(2001:1418:100:1d4::2) 56 data bytes From 2001:1418:100:1e8::1 icmp_seq=1 Destination unreachable: Address unreachable From 2001:1418:100:1e8::1 icmp_seq=2 Destination unreachable: Address unreachable What can i do yet?? Tunnel info Tunnel id: T11133 POP id: ittrn01 Ipv6 local:2001:1418:100:1d4::2/64 Ipv6 Remote:2001:1418:100:1d4::1/64 Thanks