Hi, I just tried to do some tracing and received such an unusual error..
$ traceroute6 2001:6f8:608:7:230:48ff:fe73:13fe
traceroute to 2001:6f8:608:7:230:48ff:fe73:13fe (2001:6f8:608:7:230:48ff:fe73:13fe) from 2001:470:9364:505:feed:dead:beef:cafe, port 33434, from port 54109, 30 hops max, 60 byte packets
1 * * *
2 * * *
3 * * *
4 * * *
5 * * 2001:6f8:700:1::2:1 (2001:6f8:700:1::2:1) 20.049 ms
6 * 2001:6f8:700:1::2:1 (2001:6f8:700:1::2:1) 20.604 ms 59.757 ms
7 * * 2001:6f8:700:1::2:1 (2001:6f8:700:1::2:1) 19.279 ms
8 * * *
Receive error: Permission denied
Receive error: Permission denied
Receive error: Permission denied
9 * * 2001:6f8:700:1::1:2 (2001:6f8:700:1::1:2) 43.369 ms !A
$
Could anybody explain it to me? It seems that somebody didn't let me to receive some packets..
Any ideas?
Sounds like filtering out UDP based traceroutes or similar.
ping6 ICMP works:
ping6 -c 5 2001:6f8:608:7:230:48ff:fe73:13fe
PING 2001:6f8:608:7:230:48ff:fe73:13fe(2001:6f8:608:7:230:48ff:fe73:13fe) 56 data bytes
64 bytes from 2001:6f8:608:7:230:48ff:fe73:13fe: icmp_seq=1 ttl=56 time=153 ms
64 bytes from 2001:6f8:608:7:230:48ff:fe73:13fe: icmp_seq=2 ttl=56 time=161 ms
64 bytes from 2001:6f8:608:7:230:48ff:fe73:13fe: icmp_seq=3 ttl=56 time=166 ms
64 bytes from 2001:6f8:608:7:230:48ff:fe73:13fe: icmp_seq=4 ttl=56 time=167 ms
64 bytes from 2001:6f8:608:7:230:48ff:fe73:13fe: icmp_seq=5 ttl=56 time=168 ms
--- 2001:6f8:608:7:230:48ff:fe73:13fe ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4002ms
rtt min/avg/max/mdev = 153.710/163.410/168.142/5.399 ms
mtr works:
mtr 2001:6f8:608:7:230:48ff:fe73:13fe -c5 -r
www.deus-exmachina.net Snt: 5 Loss% Last Avg Best Wrst StDev
master.deus-exmachina.net 0.0% 0.1 0.0 0.0 0.1 0.0
10gigabitethernet6-4.core1.lax1.he.net 0.0% 8.3 9.0 8.3 11.6 1.4
10gigabitethernet4-3.core1.nyc4.he.net 0.0% 19.2 63.5 19.2 79.4 25.2
10gigabitethernet1-2.core1.lon1.ipv6.he.net 0.0% 137.6 146.8 137.6 173.7 15.3
ge0-1-0-0.er0.thlon.uk.easynet.net 0.0% 138.5 138.6 138.5 138.8 0.1
2001:6f8:1::12:1 0.0% 137.5 137.5 137.4 137.5 0.0
2001:6f8:700:1::1:2 0.0% 176.3 169.4 142.8 193.0 20.9
2001:6f8:700:1::1:2 0.0% 178.5 171.1 154.8 179.3 10.6
www.ipv6.dataline.co.uk 20.0% 152.5 184.2 143.6 262.6 54.3
plain old traceroute6 doesn't:
traceroute6 2001:6f8:608:7:230:48ff:fe73:13fe
traceroute to 2001:6f8:608:7:230:48ff:fe73:13fe (2001:6f8:608:7:230:48ff:fe73:13fe), 30 hops max, 80 byte packets
1 master.deus-exmachina.net (2001:470:1:9::a) 0.033 ms 0.012 ms 0.012 ms
2 10gigabitethernet6-4.core1.lax1.he.net (2001:470:0:18d::2) 18.811 ms 18.795 ms 18.782 ms
3 10gigabitethernet4-3.core1.nyc4.he.net (2001:470:0:10e::2) 73.923 ms 73.941 ms 73.985 ms
4 10gigabitethernet1-2.core1.lon1.ipv6.he.net (2001:470:0:3e::2) 137.691 ms 137.779 ms 137.700 ms
5 ge0-1-0-0.er0.thlon.uk.easynet.net (2001:7f8:4::11ed:1) 139.615 ms 139.471 ms 139.456 ms
6 2001:6f8:1::12:1 (2001:6f8:1::12:1) 137.585 ms * *
7 2001:6f8:700:1::1:2 (2001:6f8:700:1::1:2) 167.502 ms 163.655 ms 167.200 ms
8 2001:6f8:700:1::1:2 (2001:6f8:700:1::1:2) 167.013 ms 158.465 ms 158.671 ms
9 2001:6f8:700:1::1:2 (2001:6f8:700:1::1:2) 158.497 ms !X 165.170 ms !X 165.242 ms !X
traceroute6 with TCP probes works:
traceroute6 -T 2001:6f8:608:7:230:48ff:fe73:13fe
traceroute to 2001:6f8:608:7:230:48ff:fe73:13fe (2001:6f8:608:7:230:48ff:fe73:13fe), 30 hops max, 80 byte packets
1 master.deus-exmachina.net (2001:470:1:9::a) 0.032 ms 0.016 ms 0.014 ms
2 10gigabitethernet6-4.core1.lax1.he.net (2001:470:0:18d::2) 11.474 ms 11.520 ms 11.569 ms
3 10gigabitethernet4-3.core1.nyc4.he.net (2001:470:0:10e::2) 69.843 ms 69.642 ms 69.890 ms
4 10gigabitethernet1-2.core1.lon1.ipv6.he.net (2001:470:0:3e::2) 137.709 ms 137.580 ms 137.756 ms
5 ge0-1-0-0.er0.thlon.uk.easynet.net (2001:7f8:4::11ed:1) 139.320 ms 138.802 ms 139.334 ms
6 2001:6f8:1::12:1 (2001:6f8:1::12:1) 137.748 ms * *
7 2001:6f8:700:1::1:2 (2001:6f8:700:1::1:2) 152.991 ms 154.635 ms 154.461 ms
8 2001:6f8:700:1::1:2 (2001:6f8:700:1::1:2) 154.654 ms 147.434 ms 146.778 ms
9 www.ipv6.dataline.co.uk (2001:6f8:608:7:230:48ff:fe73:13fe) 146.416 ms 151.511 ms 151.001 ms
There is always something new to learn.. thanks for your rerply :)