The below has been on going for over a week (yes it has been reported to HE) and the IETF). Not returning time exceeded really make debugging routing problems hard. Mark traceroute6 -lI www.ietf.org traceroute6 to www.ietf.org (2001:1890:1112:1::1e) from 2001:470:1f00:ffff::5a1, 64 hops max, 16 byte packets 1 dviscorg.tunnel.tserv1.fmt.ipv6.he.net (2001:470:1f00:ffff::5a0) 172.669 ms 182.219 ms 170.424 ms 2 2001:470:0:1f::1 (2001:470:0:1f::1) 178.128 ms 171.926 ms 174.877 ms 3 gige-g4-8.core1.fmt2.he.net (2001:470:0:2d::2) 172.193 ms 171.265 ms 171.221 ms 4 10gigabitethernet6-4.core1.lax1.he.net (2001:470:0:18d::2) 198.338 ms 190.680 ms 182.413 ms 5 10gigabitethernet1-3.core1.lax2.he.net (2001:470:0:72::2) 178.924 ms 189.431 ms 180.538 ms 6 2001:470:0:1e6::2 (2001:470:0:1e6::2) 181.137 ms 179.374 ms 182.321 ms 7 * * * 8 * * * 9 * * * 10 * * * 11 * * * 12 2001:1890:1fff:ffff::1 (2001:1890:1fff:ffff::1) 262.713 ms * * 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 * * * 19 * * * 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org