追踪路线:

追踪路线:

编辑:通过切换互联网服务提供商来修复 ́\(°_o)/̊

我有一个恼人的问题,当我的网络上的一些机器会挂起时抬头看连接到某些 IPv6 地址,特别是来自 Google 的地址(但我在启用 IPv6 的网络上也看到了其他地址的问题)。

sadbox $ ping -6c1 -W10 fonts.googleapis.com
PING fonts.googleapis.com(arn09s11-in-x0a.1e100.net (2a00:1450:400f:807::200a)) 56 data bytes

--- fonts.googleapis.com ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms

sadbox $ ssh happybox
Last login: Wed Apr 25 10:28:48 2018 from 192.168.1.140
happybox $ ping -6c1 -W10 fonts.googleapis.com
PING fonts.googleapis.com(arn09s11-in-x0a.1e100.net (2a00:1450:400f:807::200a)) 56 data bytes
64 bytes from arn09s11-in-x0a.1e100.net (2a00:1450:400f:807::200a): icmp_seq=1 ttl=55 time=25.6 ms

--- fonts.googleapis.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 25.675/25.675/25.675/0.000 ms

host fonts.googleapis.com两者对和nslookup fonts.googleapis.com以及 输出的相关部分给出了完全相同的答案dig

有时,主机会正常连接sadbox,有时,如果我等待足够长的时间,我会得到响应。

受影响的不仅仅是 ping,我注意到这一点是因为 Firefox 在某些网站上永远等待着 fonts.googleapis.com。

http://test-ipv6.com/网站给出了满分sadbox,我可以 ping 并连接到其他 IPv6 地址(例如 Sixxs.net)。

我所有的电脑都在运行Xubuntu 17.10,并且路由器正在运行LEDE 重启(17.01.4,r3560-79f57e422d)

可能是什么问题?我该如何调试这样的东西?


编辑: 的内容sadbox:/etc/nsswitch.conf,注释行已删除:

passwd:         compat
group:          compat
shadow:         compat

hosts:          files mdns4_minimal [NOTFOUND=return] dns mdns4
networks:       files

protocols:      db files
services:       db files
ethers:         db files
rpc:            db files

netgroup:       nis

并比较happybox

sadbox $ diff /etc/nsswitch.conf <(ssh -q happybox cat /etc/nsswitch.conf)
11c11
< hosts:          files mdns4_minimal [NOTFOUND=return] dns mdns4
---
> hosts:          files mdns4_minimal [NOTFOUND=return] dns myhostname

EDIT2:Ping 也挂在 IP 上,例如ping -6 2a00:1450:400f:807::200a,所以这不是 DNS,而是 IPv6 传输问题(感谢 Patrick Mevzek!)。一旦我回到网络,我就会获得跟踪路由。


追踪路线:

从路由器本身来看,它工作正常:

sadbox $ ssh ruter traceroute6 fonts.googleapis.com
traceroute to fonts.googleapis.com (2a00:1450:400f:807::200a), 30 hops max, 16 byte packets
 1  2a02:fe0:c900:1::1 (2a02:fe0:c900:1::1)  4.753 ms  5.894 ms  5.709 ms
 2  2a02:fe0::a:47:a:13:4 (2a02:fe0::a:47:a:13:4)  5.944 ms  8.850 ms  14.108 ms
 3  ae11-0.poh-pe1.stv.no.ip.tdc.net (2a02:228:41:100::127:0:9)  26.056 ms  15.009 ms  14.018 ms
 4  stkm3nqp7.se.ip.tdc.net (2001:6c8:40::20)  22.371 ms  22.220 ms  21.974 ms
 5  peer-as15169.stkm3nqp7.se.ip.tdc.net (2001:6c8:81:2000::9)  24.504 ms  25.047 ms  28.025 ms
 6  2001:4860:0:1344::1 (2001:4860:0:1344::1)  26.118 ms  23.686 ms  24.075 ms
 7  2001:4860:0:1::15cf (2001:4860:0:1::15cf)  22.793 ms  24.702 ms  23.859 ms
 8  arn09s11-in-x0a.1e100.net (2a00:1450:400f:807::200a)  25.886 ms  35.837 ms  36.413 ms

另一台工作计算机给出的结果大致相同:

sadbox $ ssh happybox traceroute6 fonts.googleapis.com
traceroute to ���2>V (2a00:1450:400f:807::200a) from 2a02:fe0:c910:5120:8011:3799:6dc0:2b58, 30 hops max, 24 byte packets
 1  2a02:fe0:c910:5120::1 (2a02:fe0:c910:5120::1)  1,123 ms  1,247 ms  3,537 ms
 2  2a02:fe0:c900:1::1 (2a02:fe0:c900:1::1)  6,958 ms  9,566 ms  6,955 ms
 3  2a02:fe0:0:a:47:a:13:4 (2a02:fe0:0:a:47:a:13:4)  9,985 ms  6,303 ms  8,719 ms
 4  ae11-0.poh-pe1.stv.no.ip.tdc.net (2a02:228:41:100:0:127:0:9)  6,811 ms  6,304 ms  6,741 ms
 5  stkm3nqp7.se.ip.tdc.net (2001:6c8:40::20)  25,882 ms  26,625 ms  27,079 ms
 6  peer-as15169.stkm3nqp7.se.ip.tdc.net (2001:6c8:81:2000::9)  27,169 ms  28,319 ms  28,931 ms
 7  2001:4860:0:1343::1 (2001:4860:0:1343::1)  46,643 ms  28,799 ms  25,976 ms
 8  2001:4860:0:1::b23 (2001:4860:0:1::b23)  29,373 ms  37,344 ms  28,207 ms
 9  arn09s11-in-x0a.1e100.net (2a00:1450:400f:807::200a)  27,72 ms  26,274 ms  27,764 ms

但从sadbox不太好:

sadbox $ traceroute6 fonts.googleapis.com
traceroute to ���V (2a00:1450:400f:807::200a) from 2a02:fe0:c910:5120:95b:58:ab20:d31e, 30 hops max, 24 byte packets
 1  2a02:fe0:c910:5120::1 (2a02:fe0:c910:5120::1)  4,095 ms  4,632 ms  1,558 ms
 2  2a02:fe0:c900:1::1 (2a02:fe0:c900:1::1)  11,822 ms  15,528 ms  10,568 ms
 3  2a02:fe0:0:a:47:a:13:2 (2a02:fe0:0:a:47:a:13:2)  8,823 ms  6,119 ms  10,068 ms
 4  * * *
 5  * * *
 6  * * *
 7  * * *
 8  * * *
 9  * * *
10  * * *
11  * * *
12  * * *
13  * * *
14  * * *
15  * * *
16  * * *
17  *

– 它一直给我星星(还有,那是怎么回事���V?)。 A sudo traceroute -6 -Tfromsadbox给出相同的结果。

IPv4traceroute -4在所有机器上都能正常工作,包括sadbox.

这是来自工作机器的 mtr:

sadbox $ ssh happybox mtr --report fonts.googleapis.com
Start: Tue May  1 20:41:57 2018
HOST: happybox                    Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- 2a02:fe0:c910:5120::1      0.0%    10    0.7   1.0   0.7   2.3   0.5
  2.|-- 2a02:fe0:c900:1::1         0.0%    10    7.4   9.0   6.2  14.2   2.6
  3.|-- 2a02:fe0:0:a:47:a:13:4     0.0%    10    7.4   8.0   5.6  11.9   1.9
  4.|-- ae11-0.poh-pe1.stv.no.ip.  0.0%    10    7.8   8.2   6.2  10.9   1.3
  5.|-- stkm3nqp7.se.ip.tdc.net    0.0%    10   29.3  26.8  24.8  29.4   1.6
  6.|-- peer-as15169.stkm3nqp7.se  0.0%    10   25.9  40.6  24.6 135.7  34.8
  7.|-- 2001:4860:0:1344::1        0.0%    10   63.9  35.4  26.1  63.9  13.8
  8.|-- 2001:4860:0:1::15cf        0.0%    10   26.1  28.1  24.7  36.4   3.2
  9.|-- arn09s11-in-x0a.1e100.net  0.0%    10   26.7  26.8  24.8  31.4   1.9

而穷人sadbox仍然没有利润:

sadbox $ mtr --report fonts.googleapis.com
Start: Tue May  1 20:35:59 2018
HOST: sadbox                      Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- 2a02:fe0:c910:5120::1      0.0%    10    1.9  27.3   0.6 134.6  55.7
  2.|-- 2a02:fe0:c900:1::1         0.0%    10   96.6  33.6   6.0  96.6  32.1
  3.|-- 2a02:fe0:0:a:47:a:13:2     0.0%    10    7.8   8.0   6.4  14.0   2.1
  4.|-- ???                       100.0    10    0.0   0.0   0.0   0.0   0.0

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