I have two tunnels to simbx01, one static and one ayiya, simbx01 is up, but I cannot ping6 endpoint of tunnel on both tunnels (2001:15c0:65ff:103::1, 2001:15c0:65ff:102::1). From my school I can't ping6 same endpoint, but ipv6 of simbx (gold.inlimbo.org) can. Here is traceroute4 from ayiya tunnel... traceroute to 212.18.63.73 (212.18.63.73), 64 hops max, 40 byte packets 1 10.0.0.1 (10.0.0.1) 3.177 ms 1.959 ms 1.732 ms 2 10.40.64.1 (10.40.64.1) 10.616 ms 10.389 ms 6.300 ms 3 cm.sattnet.cz (213.211.45.1) 24.553 ms 14.523 ms 38.492 ms 4 r1-sachotin-fxp2-local.czechbone.net (212.96.178.25) 16.201 ms 11.749 ms 18.128 ms 5 212.96.178.229 (212.96.178.229) 9.468 ms 13.417 ms 34.132 ms 6 gi4-0.fra-006-access-1.interoute.net (89.202.133.157) 27.041 ms 25.810 ms 41.914 ms 7 po6-0.fra-006-core-1.interoute.net (212.23.42.133) 26.716 ms 43.011 ms 24.506 ms 8 gi5-0.fra-012-inter-1.interoute.net (212.23.42.174) 56.268 ms 24.935 ms 30.121 ms 9 * decix-aon.highway.telekom.at (80.81.192.69) 176.048 ms 40.029 ms 10 195.3.118.29 (195.3.118.29) 37.994 ms 195.3.70.193 (195.3.70.193) 44.630 ms 195.3.70.81 (195.3.70.81) 42.209 ms 11 195.3.70.66 (195.3.70.66) 38.248 ms 63.035 ms 45.292 ms 12 80.120.176.182 (80.120.176.182) 46.453 ms 62.572 ms 42.760 ms 13 maribor3-ge-2-4.amis.net (212.18.35.202) 91.126 ms maribor3-ge-2-8.amis.net (212.18.35.74) 45.709 ms maribor3-ge-2-4.amis.net (212.18.35.202) 42.093 ms 14 gold.inlimbo.org (212.18.63.73) 48.945 ms 43.037 ms 52.309 ms traceroute from static tunnel.... traceroute to 212.18.63.73 (212.18.63.73), 30 hops max, 40 byte packets 1 rspt.pleas.cz (80.188.21.30) 0.963 ms 0.930 ms 0.949 ms 2 194.228.255.153 (194.228.255.153) 4.304 ms 4.314 ms 4.300 ms 3 194.228.77.1 (194.228.77.1) 4.284 ms 4.270 ms 4.234 ms 4 * * * 5 * * * 6 80.188.33.239 (80.188.33.239) 5.917 ms * 5.775 ms 7 80.188.33.238 (80.188.33.238) 7.699 ms 7.665 ms 7.631 ms 8 194.228.21.82 (194.228.21.82) 7.498 ms 7.495 ms 7.459 ms 9 prag-b1-link.telia.net (213.248.102.221) 7.429 ms 7.421 ms 7.453 ms 10 hbg-bb1-pos0-2-0.telia.net (213.248.65.1) 21.419 ms 21.413 ms 21.387 ms 11 win-b2-link.telia.net (213.248.64.170) 39.315 ms 39.294 ms 39.271 ms 12 telekom-austria-108216-win-b2.c.telia.net (213.248.76.2) 39.199 ms 39.267 ms 39.140 ms 13 * 195.3.70.189 (195.3.70.189) 39.073 ms * 14 195.3.70.70 (195.3.70.70) 39.069 ms 39.049 ms 195.3.70.66 (195.3.70.66) 38.963 ms 15 80.120.176.182 (80.120.176.182) 45.273 ms 45.211 ms 45.184 ms 16 maribor3-ge-2-4.amis.net (212.18.35.202) 44.984 ms 44.985 ms 44.963 ms 17 gold.inlimbo.org (212.18.63.73) 44.989 ms 44.920 ms 44.846 ms