I have three sixxs tunnels. Two of them go to lax pop and one goes to chi pop. I also have /48 subnet pointing to the chi pop. I am tracerouting using a host on my /48 subnet off the chi pop to one of the hosts on the lax pop tunnel. It cannot traceroute to end hosts connected to the lax pop. Is there something going on from traffic routed from chi to lax? traceroute6 workpc.bannai.org traceroute to workpc.bannai.org (2001:1938:82:77::2) from 2001:4978:220:1:216:6fff:fe4e:239a, 30 hops max, 16 byte packets 1 2001:4978:220:1::1 (2001:4978:220:1::1) 2.965 ms 2.288 ms 2.818 ms 2 2001:4978:f:2ed::1 (2001:4978:f:2ed::1) 79.4 ms 82.093 ms 79.188 ms 3 2001:4978:1:400::ffff (2001:4978:1:400::ffff) 81.091 ms 79.063 ms 78.952 ms 4 2001:470:0:7f::1 (2001:470:0:7f::1) 89.281 ms 80.03 ms 79.945 ms 5 2001:470:0:4e::2 (2001:470:0:4e::2) 103.67 ms 103.724 ms 102.483 ms 6 2001:504:f::4c (2001:504:f::4c) 102.275 ms 107.949 ms 105.997 ms 7 2001:4de0:1000:13::2 (2001:4de0:1000:13::2) 123.864 ms 122.905 ms 125.789 ms 8 2001:4de0:1000:17::2 (2001:4de0:1000:17::2) 165.136 ms 158.433 ms 162.611 ms 9 2001:4de0:1000:a5::2 (2001:4de0:1000:a5::2) 158.848 ms 158.419 ms 159.232 ms 10 * * * 11 * * * ..... On the other hand I can traceroute to ipv6.google.com fine traceroute6 ipv6.google.com traceroute to ipv6.l.google.com (2001:4860:b002::68) from 2001:4978:220:1:216:6fff:fe4e:239a, 30 hops max, 16 byte packets 1 2001:4978:220:1::1 (2001:4978:220:1::1) 1006 ms 1.613 ms 1.401 ms 2 2001:4978:f:2ed::1 (2001:4978:f:2ed::1) 80.87 ms 80.235 ms 78.446 ms 3 2001:4978:1:400::ffff (2001:4978:1:400::ffff) 80.877 ms 81.873 ms 78.944 ms 4 2001:470:0:7f::1 (2001:470:0:7f::1) 80.088 ms 85.881 ms 80.201 ms 5 2001:470:0:4e::2 (2001:470:0:4e::2) 101.571 ms 102.101 ms 103.556 ms 6 2001:504:f::27 (2001:504:f::27) 132.477 ms 103.492 ms 133.381 ms 7 2001:4860::30 (2001:4860::30) 125.1 ms 122.343 ms 121.975 ms 8 2001:4860:b002::68 (2001:4860:b002::68) 122.294 ms 121.924 ms 122.661 ms Is this a known problem?