无法连接到网络:路由问题?

无法连接到网络:路由问题?

我在将 Ubuntu 服务器连接到网络时遇到了最大的困难,我感觉这是因为我的路由不正确。有人能帮我吗?

网络管理员提供的网络配置:IPv4:xxx.xxx.xxx.150 子网:xxx.xxx.xxx.128/25 网关:xxx.xxx.xxx.129 子网掩码:255.255.255.128 完全限定域名:aaa.bbb.ccc.com DNS 名称服务器 1:X DNS 名称服务器 2:Y DNS 名称服务器 3:Z

$ cat /etc/network/interfaces
auto lo
iface lo inet loopback

auto p5p2
iface p5p2 inet static
    address xxx.xxx.xxx.150
    gateway xxx.xxx.xxx.129
    netmask 255.255.255.128
    network xxx.xxx.xxx.128/25
    broadcast xxx.xxx.xxx.255
    dns-domain ccc.com
    dns-search ccc.com bbb.ccc.com
    dns-nameservers X Y Z

$ ifconfig
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:12493 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12493 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:685849 (685.8 KB)  TX bytes:685849 (685.8 KB)

p5p2      Link encap:Ethernet  HWaddr 00:25:90:c0:bf:f3  
          inet addr:xxx.xxx.xxx.150  Bcast:xxx.xxx.xxx.255  Mask:255.255.255.128
          inet6 addr: xxxx::xxx:xxxx:xxxx:bff3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:164475 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1827 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:15147287 (15.1 MB)  TX bytes:137569 (137.5 KB)

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         xxx.xxx.xxx.129 0.0.0.0         UG    0      0        0 p5p2
xxx.xxx.xxx.128 0.0.0.0         255.255.255.128 U     0      0        0 p5p2

$ ping -c 4 xxx.xxx.xxx.129
PING xxx.xxx.xxx.129 (xxx.xxx.xxx.129) 56(84) bytes of data.
From xxx.xxx.xxx.150 icmp_seq=1 Destination Host Unreachable
From xxx.xxx.xxx.150 icmp_seq=2 Destination Host Unreachable
From xxx.xxx.xxx.150 icmp_seq=3 Destination Host Unreachable
From xxx.xxx.xxx.150 icmp_seq=4 Destination Host Unreachable

--- xxx.xxx.xxx.129 ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 2999ms
pipe 3

$ cat /etc/hosts
127.0.0.1   localhost
127.0.1.1   localhost
xxx.xxx.xxx.150 aaa.bbb.ccc.com aaa

答案1

这不太可能是路由问题 - 更可能是电缆或驱动程序故障。

第一步是看看您是否可以 ping 通网关 (xxx.xxx.xxx.129)。如果可以,则可以查看路由,如果不行,则需要查看较低级别 - 我认为问题出在较低级别。

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