Tuna大神们， 我最近用IPV6无法上网之前Ok，我知道搞网络最讨厌这样的用户，别担心这邮件包括tcpdump和细节，我也自己调试了不少，求帮助。情况如下：
我的ping包(ICMP6 echo)被IPv6路由器转发到互联网，在日本的服务器收到我从清华机器发出的包并且回答ICMP6 reply，但是清华机器没收到ICMP reply。如果从日本服务器ping清华机器完全没接受到任何包。 ping www.google.com 或者facebook也不行。 在清华机器的tcpdump： 17:23:57.589720 IP6 2402:f000:1:xx:xx:xx:xx:xx > 2001:x:x:xx::xx: ICMP6, echo request, seq 140, length 64 17:23:58.589711 IP6 2402:f000:1:x:xx:xxx:xx:xx > 2001:x:x:x::xx: ICMP6, echo request, seq 141, length 64 在日本服务器tcpdump 09:23:58.721637 IP6 2402:f000:xx > 2001:xxx: ICMP6, echo request, seq 141, length 64 09:23:58.721679 IP6 2001:xx > 2402:xx: ICMP6, echo reply, seq 141, length 64 清华机器路由表： 2402:f000:x::/64 dev is0 proto kernel metric 256 expires 2591559sec pref medium 2402:f000:x::/64 dev enp0s25 proto ra metric 100 pref medium 2402:f000:x::/64 dev enp0s25 proto ra metric 100 pref medium fe80::/64 dev is0 proto kernel metric 256 pref medium fe80::/64 dev enp0s25 proto kernel metric 256 pref medium default via fe80::5efe:a66f:1501 dev is0 proto ra metric 1024 expires 1360sec hoplimit 64 pref medium 从日本机器tracepath6到清华机器： sudo tracepath6 "2402:f000:xxx" 1?: [LOCALHOST] 0.018ms pmtu 1500 1: no reply 2: 2001:19f0:7000:8000::1 0.607ms 3: xe-0-3-0-9.r02.tokyjp03.jp.bb.gin.ntt.net 1.513ms 4: ae-10.r30.tokyjp05.jp.bb.gin.ntt.net 2.134ms 5: ae-1.r23.snjsca04.us.bb.gin.ntt.net 106.939ms 6: ae-41.r02.snjsca04.us.bb.gin.ntt.net 107.934ms 7: 100gigabitethernet2-3.core1.sjc2.he.net 117.274ms 8: 10ge3-3.core1.pao1.he.net 117.713ms 9: 100ge8-1.core1.lax2.he.net 153.311ms 10: cngi-bjix-as-ap-as23911.10gigabitethernet16-5.core1.lax2.he.net 119.320ms 11: 2001:252:0:302::1 269.221ms asymm 12 12: no reply 13: 2001:252:0:1::1 259.071ms asymm 14 14: 2001:da8:1:501::2 250.714ms 15: cernet2.net 263.334ms 16: cernet2.net 262.997ms 17: 2402:f000:0:424::38 258.929ms 18: 2402:f000:0:288::138 256.928ms 19: no reply 20: 2402:f000:0:3cc::205 257.592ms pmtu 1480 20: no reply 21: no reply 22: no reply 23: no reply 24: no reply 从清华机器到日本机器tracepath都是no reply。不知道还能查什么。。 Thanks, Sam -- --- You received this message because you are subscribed to the Google Groups "TUNA 主邮件列表" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
