From the tunnel to deham02 I am unable to reach the gogo6 addresses. In specific I tried www.gogo6.com and my tunnel endpoint at gogo6/freenet6. From the gogo6 tunnel www.gogo6.com is up and running. This seems not to be a problem with OCAAID since tracroute tells that it is not used. traceroute6 to www.gogo6.com (2001:5c0:1000:10::2) from 2001:6f8:1c00:1b8::2, 64 hops max, 12 byte packets 1 gw-441.ham-02.de.sixxs.net 20.476 ms 20.684 ms 20.827 ms 2 vl101.cr21.isham.de.easynet.net 20.589 ms 20.880 ms 20.583 ms 3 ge1-3.br2.isham.de.easynet.net 20.724 ms 20.756 ms 20.833 ms 4 2001:6f8:1:0:87:86:71:240 20.836 ms 21.035 ms 21.083 ms 5 2001:6f8:1:0:87:86:77:67 21.341 ms 21.670 ms 20.579 ms 6 2001:6f8:1:0:86:87:77:81 21.465 ms 20.667 ms 20.834 ms 7 2001:6f8:1:0:87:86:77:83 20.963 ms 21.022 ms 21.209 ms 8 2001:6f8:1:0:86:87:77:95 33.953 ms 33.013 ms 33.700 ms 9 2001:6f8:1:0:87:86:77:247 35.082 ms 33.642 ms 33.567 ms 10 de-cix.fra20.ip6.tiscali.net 30.330 ms 31.102 ms 30.447 ms 11 xe-3-0-0.fra23.ip6.tinet.net 35.207 ms xe-1-0-0.fra23.ip6.tinet.net 31.262 ms 32.254 ms 12 as6453.ip6.tinet.net 42.936 ms 35.885 ms 36.195 ms 13 2a01:3e0:ffc0::25 31.832 ms 31.977 ms 2a01:3e0:ffc0::15 31.447 ms 14 POS10-0-0.core1.PV1-Paris.ipv6.as6453.net 44.882 ms 44.247 ms 42.810 ms 15 POS5-0-0.mcore3.MTT-Montreal.ipv6.as6453.net 123.651 ms 123.546 ms 124.132 ms 16 if-3-0-0.6bb1.MTT-Montreal.ipv6.as6453.net 123.393 ms 124.316 ms 125.011 ms 17 2001:5a0:300::6 123.514 ms 122.325 ms 128.520 ms 18 * * * Simmelar to my tunnel at freenet6: [martin@server ~]$ traceroute6 2001:5c0:1400:b::68ad traceroute6 to 2001:5c0:1400:b::68ad (2001:5c0:1400:b::68ad) from 2001:6f8:1c00:1b8::2, 64 hops max, 12 byte packets 1 gw-441.ham-02.de.sixxs.net 27.076 ms 20.861 ms 20.330 ms 2 vl101.cr21.isham.de.easynet.net 20.713 ms 20.526 ms 21.027 ms 3 ge1-3.br2.isham.de.easynet.net 21.005 ms 20.771 ms 20.905 ms 4 2001:6f8:1:0:87:86:71:240 20.480 ms 20.554 ms 20.649 ms 5 2001:6f8:1:0:87:86:77:67 187.388 ms 241.504 ms 91.899 ms 6 2001:6f8:1:0:86:87:77:81 21.714 ms 21.409 ms 20.827 ms 7 2001:6f8:1:0:87:86:77:83 129.527 ms 212.881 ms 202.449 ms 8 2001:6f8:1:0:86:87:77:95 220.701 ms 199.519 ms 198.213 ms 9 2001:6f8:1:0:87:86:77:247 34.451 ms 34.251 ms 33.956 ms 10 1-2.r1.fr.hwng.net 30.451 ms 30.483 ms 31.951 ms 11 2001:4de0:1000:3::1 37.960 ms 39.503 ms 38.192 ms 12 * * * Thank you, Martin Laabs