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有线连接已连接，但无法访问互联网

tag-icon • tag-icon 13.04 networking internet wired
有线连接已连接，但无法访问互联网

我有一台 HP Compaq nx6310 笔记本电脑，最近在上面安装了 Ubuntu 13.04。我有一台 TP-Link WR720N 路由器，连接到另一个运行 Windows 8 Pro 的系统。问题是我可以连接到路由器，但我的 Ubuntu 系统无法访问互联网，但在 Windows 上可以正常工作。请在这方面帮助我。

输出ifconfig：

saumya@saumya-HP-Compaq-nx6310:~$ ifconfig
eth1    Link encap:Ethernet  HWaddr 00:17:08:30:43:9b
        inet addr:192.168.0.101  Bcast:192.168.0.255  Mask:255.255.255.0
        inet6 addr: fe80::217:8ff:fe30:439b/64 Scope:Link
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
        RX packets:674 errors:0 dropped:0 overruns:0 frame:0
        TX packets:106 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:1000
        RX bytes:125357 (125.3 KB)  TX bytes:21771 (21.7 KB)
        Interrupt:16

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:616 errors:0 dropped:0 overruns:0 frame:0
        TX packets:616 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:0
        RX bytes:47392 (47.3 KB)  TX bytes:47392 (47.3 KB)

输出iwconfig：

saumya@saumya-HP-Compaq-nx6310:~$ iwconfig
lo      no wireless extensions.

eth1    no wireless extensions.

输出nm-tool：

saumya@saumya-HP-Compaq-nx6310:~$ nm-tool

NetworkManager Tool

State: connected (global)

- Device: eth1  [Wired connection 1] -----------------------------------------
  Type:              Wired
  Driver:            b44
  State:             connected
  Default:           yes
  HW Address:        00:17:08:30:43:9B

  Capabilities:
    Carrier Detect:  yes
    Speed:           100 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.101
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             8.8.8.8
    DNS:             4.2.2.2

输出ping -c2 192.168.0.1：

saumya@saumya-HP-Compaq-nx6310:~$ ping -c2 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
64 bytes from 192.168.0.1: icmp_req=1 ttl=64 time=0.445 ms
64 bytes from 192.168.0.1: icmp_req=2 ttl=64 time=0.158 ms

--- 192.168.0.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.158/0.301/0.445/0.144 ms

输出ping -c2 4.2.2.2：

saumya@saumya-HP-Compaq-nx6310:~$ ping -c2 4.2.2.2
PING 4.2.2.2 (4.2.2.2) 56(84) bytes of data.
64 bytes from 4.2.2.2: icmp_req=1 ttl=46 time=446 ms
64 bytes from 4.2.2.2: icmp_req=2 ttl=46 time=280 ms

--- 4.2.2.2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 280.625/363.365/446.105/82.740 ms

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