IPv6 Connectivity Problem

[swwind]

IPv6 丢包率 100% 啊怎么回事啊

➜  ~ ping git.hit.edu.cn
PING git.hit.edu.cn(cernet2.net (2001:da8:b800:253::aa1:640f)) 56 data bytes
^C
--- git.hit.edu.cn ping statistics ---
57 packets transmitted, 0 received, 100% packet loss, time 56747ms

➜  ~ ping www.qq.com      
PING www.qq.com(2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1)) 56 data bytes
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=1 ttl=52 time=17.8 ms
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=2 ttl=52 time=19.5 ms
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=3 ttl=52 time=19.4 ms
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=4 ttl=52 time=19.7 ms
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=5 ttl=52 time=19.5 ms
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=6 ttl=52 time=19.9 ms
64 bytes from 2402:4e00:1430:1301:0:9227:79d3:ffd1 (2402:4e00:1430:1301:0:9227:79d3:ffd1): icmp_seq=7 ttl=52 time=20.0 ms
^C
--- www.qq.com ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 6011ms
rtt min/avg/max/mdev = 17.848/19.410/19.985/0.668 ms

下面是 traceroute 的结果

traceroute to git.hit.edu.cn (2001:da8:b800:253::aa1:640f), 30 hops max, 80 byte packets
 1  2409:8a28:625d:84b0::1 (2409:8a28:625d:84b0::1)  2.976 ms  2.920 ms  2.897 ms
 2  2409:8028:50:1::7199 (2409:8028:50:1::7199)  4.936 ms  4.926 ms  5.184 ms
 3  2409:8028:50:2::7236 (2409:8028:50:2::7236)  6.764 ms  6.934 ms  6.926 ms
 4  2409:8080:0:2:1105:1151:200:0 (2409:8080:0:2:1105:1151:200:0)  7.573 ms 2409:8080:0:2:1105:1152:500:0 (2409:8080:0:2:1105:1152:500:0)  8.660 ms  6.942 ms
 5  2409:8080:0:1:605:1106:: (2409:8080:0:1:605:1106::)  44.853 ms 2409:8080:0:1:604:1105:: (2409:8080:0:1:604:1105::)  42.004 ms  40.685 ms
 6  2409:8080:0:1:605:6e2:0:1 (2409:8080:0:1:605:6e2:0:1)  44.826 ms  43.735 ms 2409:8080:0:1:604:6e2:0:1 (2409:8080:0:1:604:6e2:0:1)  37.968 ms
 7  2409:8080:0:3:6e2:683:0:1 (2409:8080:0:3:6e2:683:0:1)  56.751 ms 2409:8080:0:3:6e2:683:1:1 (2409:8080:0:3:6e2:683:1:1)  64.553 ms  60.885 ms
 8  2001:da8:2:706::1 (2001:da8:2:706::1)  53.457 ms  54.564 ms  48.801 ms
 9  2001:da8:2:21::2 (2001:da8:2:21::2)  50.164 ms  55.595 ms  55.305 ms
10  2001:da8:2:2a::2 (2001:da8:2:2a::2)  63.613 ms  56.686 ms  62.379 ms
11  2001:da8:2:119::2 (2001:da8:2:119::2)  61.271 ms  60.971 ms  55.288 ms
12  cernet2.net (2001:da8:ab:101::2)  53.010 ms  53.460 ms  57.541 ms
13  * * *
14  * * *
15  * * *
16  * * *
17  * * *
18  * * *
19  * * *
20  * * *
21  * * *
22  * * *
23  * * *
24  * * *
25  * * *
26  * * *
27  * * *
28  * * *
29  * * *
30  * * *

[billchenchina]

正在处理

[billchenchina]

晚上五点左右应该是好了，试试看？

[swwind]

➜  ~ ping git.hit.edu.cn
PING git.hit.edu.cn(cernet2.net (2001:da8:b800:253::aa1:640f)) 56 data bytes
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=1 Destination unreachable: Administratively prohibited
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=2 Destination unreachable: Administratively prohibited
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=3 Destination unreachable: Administratively prohibited
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=4 Destination unreachable: Administratively prohibited
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=5 Destination unreachable: Administratively prohibited
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=6 Destination unreachable: Administratively prohibited
From v6.nsfcnet.net (2001:250:fe01::aa0:fe6a) icmp_seq=7 Destination unreachable: Administratively prohibited
^C
--- git.hit.edu.cn ping statistics ---
7 packets transmitted, 0 received, +7 errors, 100% packet loss, time 6010ms

➜  ~ traceroute -6 git.hit.edu.cn
traceroute to git.hit.edu.cn (2001:da8:b800:253::aa1:640f), 30 hops max, 80 byte packets
 1  2409:8a28:625d:84b0::1 (2409:8a28:625d:84b0::1)  3.630 ms  3.606 ms  3.596 ms
 2  2409:8028:50:1::7199 (2409:8028:50:1::7199)  5.665 ms  5.656 ms  6.098 ms
 3  2409:8028:50:2::7236 (2409:8028:50:2::7236)  7.238 ms 2409:8028:50:1::7198 (2409:8028:50:1::7198)  6.703 ms 2409:8028:50:2::7236 (2409:8028:50:2::7236)  7.755 ms
 4  2409:8080:0:2:1106:1152:500:0 (2409:8080:0:2:1106:1152:500:0)  9.258 ms 2409:8080:0:2:1105:1152:500:0 (2409:8080:0:2:1105:1152:500:0)  7.761 ms 2409:8080:0:2:1105:1151:200:0 (2409:8080:0:2:1105:1151:200:0)  7.247 ms
 5  2409:8080:0:1:605:1106:: (2409:8080:0:1:605:1106::)  44.789 ms 2409:8080:0:1:604:1105:: (2409:8080:0:1:604:1105::)  44.241 ms  42.187 ms
 6  2409:8080:0:1:605:6e2:0:1 (2409:8080:0:1:605:6e2:0:1)  44.459 ms 2409:8080:0:1:604:6e2:0:1 (2409:8080:0:1:604:6e2:0:1)  38.489 ms 2409:8080:0:1:605:6e2:0:1 (2409:8080:0:1:605:6e2:0:1)  43.354 ms
 7  2409:8080:0:3:6e2:683:0:1 (2409:8080:0:3:6e2:683:0:1)  52.284 ms 2409:8080:0:3:6e2:683:2:1 (2409:8080:0:3:6e2:683:2:1)  59.549 ms 2409:8080:0:3:6e2:683:0:1 (2409:8080:0:3:6e2:683:0:1)  56.604 ms
 8  2001:da8:2:706::1 (2001:da8:2:706::1)  51.454 ms  51.435 ms  53.219 ms
 9  2001:da8:2:21::2 (2001:da8:2:21::2)  58.840 ms  50.172 ms  58.801 ms
10  2001:da8:2:2a::2 (2001:da8:2:2a::2)  55.663 ms  55.641 ms  62.821 ms
11  2001:da8:2:119::2 (2001:da8:2:119::2)  56.682 ms  52.257 ms  56.426 ms
12  cernet2.net (2001:da8:ab:101::3)  57.480 ms  51.751 ms  57.933 ms
13  v6.nsfcnet.net (2001:250:fe01::aa0:fe6a)  56.816 ms !X  57.054 ms !X  57.028 ms !X

[swwind]

噢噢，只是 ping 不通而已，ssh 和 http 服务都已经可以正常访问了。

[billchenchina]

噢噢，只是 ping 不通而已，ssh 和 http 服务都已经可以正常访问了。

今天凌晨三点左右学校有一个涉及 IPv6 的割接，中午发现之后修的。