我有一台上网本，上面同时使用 Windows 7 和 Ubuntu 12.04 LTS。一个月前我换了路由器，从那时起，使用 Ubuntu，我可以连接到 Wifi，但不能连接到互联网。无论如何，使用 Windows，我可以连接到 Wifi 和互联网。此外，使用以太网电缆，我也可以使用 Ubuntu 连接到互联网。有人有什么想法吗？
iwconfig
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"SitecomF6E142"
Mode:Managed Frequency:2.412 GHz Access Point: 00:0C:F6:F6:E1:42
Bit Rate=150 Mb/s Tx-Power=14 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=59/70 Signal level=-51 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:3 Invalid misc:167 Missed beacon:0
eth0 no wireless extensions.
ifconfig
eth0 Link encap:Ethernet IndirizzoHW c8:0a:a9:0d:bd:70
indirizzo inet:192.168.0.104 Bcast:192.168.0.255 Maschera:255.255.255.0
indirizzo inet6: fe80::ca0a:a9ff:fe0d:bd70/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6925 errors:0 dropped:0 overruns:0 frame:0
TX packets:6214 errors:0 dropped:0 overruns:0 carrier:1
collisioni:0 txqueuelen:1000
Byte RX:5865027 (5.8 MB) Byte TX:975928 (975.9 KB)
Interrupt:46
lo Link encap:Loopback locale
indirizzo inet:127.0.0.1 Maschera:255.0.0.0
indirizzo inet6: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:808 errors:0 dropped:0 overruns:0 frame:0
TX packets:808 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:0
Byte RX:70313 (70.3 KB) Byte TX:70313 (70.3 KB)
wlan0 Link encap:Ethernet IndirizzoHW 00:1e:64:36:48:0a
indirizzo inet:192.168.0.112 Bcast:192.168.0.255 Maschera:255.255.255.0
indirizzo inet6: fe80::21e:64ff:fe36:480a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:625 errors:0 dropped:0 overruns:0 frame:0
TX packets:565 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:91559 (91.5 KB) Byte TX:71963 (71.9 KB)
nm-tool
NetworkManager Tool
State: connected (global)
- Device: wlan0 [SitecomF6E142] -----------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: connected
Default: no
HW Address: 00:1E:64:36:48:0A
Capabilities:
Speed: 150 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
*SitecomF6E142: Infra, 00:0C:F6:F6:E1:42, Freq 2412 MHz, Rate 54 Mb/s, Strength 78 WPA2
IPv4 Settings:
Address: 192.168.0.112
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
- Device: eth0 [Connessione via cavo 1] ---------------------------------------
Type: Wired
Driver: atl1c
State: connected
Default: yes
HW Address: C8:0A:A9:0D:BD:70
Capabilities:
Carrier Detect: yes
Speed: 1000 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.0.104
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.1
DNS: 192.168.0.1
lshw -C network
*-network
description: Ethernet interface
product: AR8131 Gigabit Ethernet
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:01:00.0
logical name: eth0
version: c0
serial: c8:0a:a9:0d:bd:70
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI duplex=full firmware=N/A ip=192.168.0.104 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:46 memory:d3500000-d353ffff ioport:2000(size=128)
*-network
description: Wireless interface
product: Centrino Wireless-N 1000
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 00
serial: 00:1e:64:36:48:0a
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-49-generic firmware=39.31.5.1 build 35138 ip=192.168.0.112 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:44 memory:d2500000-d2501fff
还需要其他东西吗？谢谢。
答案1
避免对网络接口使用同一范围的 IP 地址。
您可以通过为其中一个192.168.0.5和另一个提供192.168.10.5相同的255.255.255.0掩码来避免这种情况；鉴于您的 AP 可以处理您的新 IP 范围，现在一切都应该正常。