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接口错误

tag-icon • tag-icon 16.04 networking server
接口错误

由于两天没有上网，我的测试服务器今天我发现了一些有趣的事情，如下所示：

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         213.156.10.17   0.0.0.0         UG    0      0        0 eth0
10.0.201.2      0.0.0.0         255.255.255.255 UH    0      0        0 Albert
192.9.200.0     10.0.201.1      255.255.255.0   UG    0      0        0 Albert
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth2
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
192.168.100.0   0.0.0.0         255.255.255.0   U     0      0        0 eth3
213.156.10.0    0.0.0.0         255.255.255.0   U     0      0        0 eth0
213.156.10.16   0.0.0.0         255.255.255.240 U     0      0        0 eth0

因此，列表顶部的 eth0 网关应该与列表底部的网关在一起，当我检查时，/etc/network/interfaces它们是在一起的，当我重新启动服务时，没有任何变化

接口文件：

主网络接口

自动 eth0 iface eth0 inet 静态

    address 213.156.10.20
    gateway 213.156.10.17
    netmask 255.255.255.240

还有其他几行，但它们是 # 情况，它们很旧，但有时需要尝试一些东西

另外，从底部开始的第二个 eth0 根本不应该在那里，所以发生了什么事？因为两天前或昨天我检查的时候情况并不是这样的

edit1：Mikael Schultz 要求我执行几个命令，因此这里是它们的 IP 地址

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:13:21:f2:75:3d brd ff:ff:ff:ff:ff:ff
    inet 213.156.10.20/28 brd 213.156.10.31 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::213:21ff:fef2:753d/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:13:21:f2:75:3c brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.164/24 brd 192.168.1.255 scope global eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::213:21ff:fef2:753c/64 scope link
       valid_lft forever preferred_lft forever
4: eth2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 00:11:0a:61:9b:dc brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.1/24 brd 192.168.0.255 scope global eth2
       valid_lft forever preferred_lft forever
5: eth3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 00:11:0a:61:9b:dd brd ff:ff:ff:ff:ff:ff
    inet 192.168.100.253/24 brd 192.168.100.255 scope global eth3
       valid_lft forever preferred_lft forever
6: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1
    link/gre 0.0.0.0 brd 0.0.0.0
7: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
8: Albert@eth0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1476 qdisc noqueue state UNKNOWN group default qlen 1
    link/gre 213.156.10.20 peer 212.57.52.228
    inet 10.0.201.1 peer 10.0.201.2/32 brd 10.0.201.255 scope global Albert
       valid_lft forever preferred_lft forever
    inet6 fe80::200:5efe:d59c:a14/64 scope link
       valid_lft forever preferred_lft forever

ping 213.156.10.17

PING 213.156.10.17 (213.156.10.17) 56(84) bytes of data.
From 213.156.10.20 icmp_seq=1 Destination Host Unreachable
From 213.156.10.20 icmp_seq=2 Destination Host Unreachable
From 213.156.10.20 icmp_seq=3 Destination Host Unreachable
From 213.156.10.20 icmp_seq=4 Destination Host Unreachable
From 213.156.10.20 icmp_seq=5 Destination Host Unreachable
From 213.156.10.20 icmp_seq=6 Destination Host Unreachable
^C
--- 213.156.10.17 ping statistics ---
7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6017ms
pipe 3

ping 8.8.8.8

connect: Network is unreachable

答案1

在得到了同事的帮助后，问题很快得到解决，只需对/ect/network/interfaces防火墙进行一些调整，一切恢复正常，感谢 Mikael Schultz 的努力

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