Hello. I'm using sixxs tunnel number T9520 by user TLG1-SIXXS. My ipv6 address is 2001:14b8:100:18e::2 and ipv4 213.139.187.253. Tunnels work fine for all other ipv6 addresses, except 6to4. I ran 'aiccu test' and there were no problems. My system is 'Linux porogrammer 2.6.16-1-686 #2 Thu May 4 18:22:23 UTC 2006 i686 GNU/Linux' (Debian unstable). When trying to contact some 6to4 -type ipv6 address from my system, traceroute6 shows following: user@porogrammer:~$ traceroute6 papu.6dns.org traceroute to papu.6dns.org (2002:d432:868a::1) from 2001:14b8:100:18e::2, 30 hops max, 16 byte packets 1 gw-399.hel-01.fi.sixxs.net (2001:14b8:100:18e::1) 11.627 ms 11.386 ms 11.511 ms 2 van5r3.ip6.fv.fi (2001:14b8:0:2000::201) 11.915 ms 11.837 ms 11.796 ms 3 hki1r5.ip6.fv.fi (2001:14b8::4) 12.274 ms 12.464 ms 12.371 ms 4 song.ficix2-ge.ficix.fi (2001:7f8:7:1::3246:1) 12.766 ms 12.394 ms 12.378 ms 5 psl-p2.hel.fi.6.sn.net (2001:6e8:1:1:1:1:2:3) 12.824 ms 12.322 ms 12.564 ms 6 ltt-p2.hel.fi.6.sn.net (2001:6e8:1:1:1:1:1:5) 12.784 ms 12.63 ms 12.475 ms 7 * * * 8 ltt-ipv6-pe1.hel.fi.6.sn.net (2001:6e8:1:1:1:1:1:2) 13.636 ms 12.941 ms 13.394 ms 9 * * * 10 * * * 11 * * * 12 * * * And when trying to connect from the other end to my machine, traceroute6 shows: user@papu:~ $ traceroute6 porogrammer.org traceroute to porogrammer.org (2001:14b8:100:18e::2), 30 hops max, 40 byte packets 1 2002:c058:6301::1741 (2002:c058:6301::1741) 12.444 ms 12.905 ms 12.680 ms 2 csc0-g4100-sixpack.ipv6.funet.fi (2001:708:0:1::625) 12.921 ms 21.999 ms 22.120 ms 3 finnet.ficix1-ge.ficix.fi (2001:7f8:7::1:6086:1) 13.569 ms 12.955 ms 12.752 ms 4 * * * 5 * * * 6 * * * 7 * * * Is there any possibilities to fix this? You can contact me for more information by email to <removed> Thanks.