Max Tulyev wrote: Hi,
I see v6 connectivity is much worse than v4:
traceroute to kite-www.ripe.net (2001:610:240:0:a843::8) from 2a01:d8:0:99:211:11ff:fe1f:bfc9, 30 hops max, 16 byte packets 1 2a01:d8:0:99::1 (2a01:d8:0:99::1) 0.782 ms 0.719 ms 2.227 ms 2 2a01:d8:0:1::1 (2a01:d8:0:1::1) 40.904 ms 2.346 ms 2.754 ms 3 2001:b08:0:2::1 (2001:b08:0:2::1) 35.849 ms 7.533 ms 2.576 ms 4 2001:b08:b08:3::2 (2001:b08:b08:3::2) 35.205 ms 25.399 ms 25.649 ms 5 se-kth.nordu.net (2001:948:0:f02c::1) 29.649 ms 25.579 ms 25.545 ms 6 se-ov.nordu.net (2001:948:0:f027::2) 33.705 ms 25.539 ms 25.927 ms 7 dk-gw2.nordu.net (2001:948:0:f03f::2) 39.785 ms 33.901 ms 33.688 ms 8 * * * 9 * * * 10 * * * 11 * * * 12 nikipv6.ripe.net (2001:7f8:1::a500:3333:1) 214.93 ms 226.989 ms 215.676 ms 13 kite-www.ripe.net (2001:610:240:0:a843::8) 214.484 ms 215.588 ms 221.891 ms
I don't know whether 2a01:d8::/32 is supposed to be routed through GEANT (going through nordu.net suggests so), but currently I see it only through Sprint. The Sprint upstream of Nordunet has been a great joy for several occasions now (I have an IPv6-in-IPv6 tunnel to UNINETT for Multicast which is routed back to me via Sprint). 2: rt4.muc1.m-online.net 46.408ms 3: 2001:a60:0:101:89:1:1:9 asymm 4 48.232ms 4: ge-1-0-0-132.rt7.muc3.m-online.net asymm 5 80.360ms 5: ge-0-1-0-302-gar1.muc.cw.net asymm 6 47.831ms 6: so-4-3-0-dcr2.fra.cw.net asymm 7 57.416ms 7: so-4-0-0-dcr1.amd.cw.net asymm 8 71.665ms 8: so-3-0-0-zcr1.amt.cw.net asymm 9 70.195ms 9: nl-ams04a-re1-fe-0-0.ipv6.aorta.net 72.908ms 10: be-bru01a-re1-t-2.ipv6.aorta.net 77.627ms 11: uk-lon01a-re1-t-2.ipv6.aorta.net asymm 12 83.444ms 12: us-nyc02a-re2-t-0.ipv6.aorta.net asymm 13 151.593ms 13: us-nyc02a-re1-fe-0-0.ipv6.aorta.net asymm 14 154.725ms 14: sprarpa-gw2.us.ipv6.aorta.net asymm 15 169.199ms 15: sl-s1v6-nyc-t-1000.sprintv6.net asymm 16 184.698ms 16: sl-bb1v6-sto-t-101.sprintv6.net asymm 17 281.296ms 17: 2001:7f8:d:fb::24 221. 74ms 18: se-kth.nordu.net 219.620ms 19: SE-gw.RUN.net asymm 18 223.267ms 20: 2001:b08:b08:3::1 asymm 19 239.308ms 21: 2001:b08:0:2::2 asymm 20 244.649ms 22: 2a01:d8:0:1::4 asymm 21 246. 81ms 23: 2a01:d8:0:99:211:11ff:fe1f:bfc9 asymm 22 246.726ms reached Resume: pmtu 1280 hops 23 back 22 I suggest you kick Nordunet/GEANT to transit this prefix (if it is academic) or try to get a better upstream.
And some parts of v6 Internet is completly unreachable. Is it my bug or real situation?
It is a real problem, but not a common one in IPv6. Regards, Bernhard