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Docker 启动后失去网络连接

tag-icon • tag-icon linux docker
Docker 启动后失去网络连接

我在 Linux 中遇到了一个奇怪的问题，在 VMWare 上的 SLES12 下运行。通过发出 service docker start 启动 docker 后，我从 putty 中失去了与 Linux 机器的网络连接……为了恢复它，我必须从另一台 Linux 机器 ssh 到它。所以看起来它把我的接口弄乱了

启动docker之前

$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:50:56:B6:33:30
          inet addr:10.100.0.101  Bcast:10.100.0.255  Mask:255.255.255.0
          inet6 addr: fe80::250:56ff:feb6:3330/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:163546 errors:0 dropped:10 overruns:0 frame:0
          TX packets:70909 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:18524059 (17.6 Mb)  TX bytes:15505464 (14.7 Mb)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:16094 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16094 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1425313 (1.3 Mb)  TX bytes:1425313 (1.3 Mb)

之后ifconfig​

$ ifconfig
docker0   Link encap:Ethernet  HWaddr 02:42:D6:7A:25:1C
          inet addr:172.17.0.1  Bcast:172.17.255.255  Mask:255.255.0.0
          inet6 addr: fe80::42:d6ff:fe7a:251c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:318 errors:0 dropped:0 overruns:0 frame:0
          TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:26040 (25.4 Kb)  TX bytes:1394 (1.3 Kb)

docker_gw Link encap:Ethernet  HWaddr 02:42:01:39:74:46
          inet addr:172.18.0.1  Bcast:172.18.255.255  Mask:255.255.0.0
          inet6 addr: fe80::42:1ff:fe39:7446/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:115 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:5206 (5.0 Kb)

eth0      Link encap:Ethernet  HWaddr 00:50:56:B6:33:30
          inet addr:10.100.0.101  Bcast:10.100.0.255  Mask:255.255.255.0
          inet6 addr: fe80::250:56ff:feb6:3330/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:164222 errors:0 dropped:10 overruns:0 frame:0
          TX packets:71533 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:18582001 (17.7 Mb)  TX bytes:15580880 (14.8 Mb)

答案1

这是由于错误的路由 ip 或冲突的 mac 地址造成的

你可以使用 #ip a 和 #ip r 命令查看发生了什么

如果你需要更多帮助，请在此处发送你的 IP 或导出

你可以通过 /sbin/route add default gw [Youtip] 更改默认网关来修复你的网络

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