大家好，我是新手，一个问题搞了3个星期，也百度过，没解决，希望得到大家的帮助。我的机子是联想的K66，intel830，图拉丁1.1的CPU。装上UBUNNT8.04的版本。网卡无法联网。网卡在w2k下认的是“Accton EN2242 Series MiniPCI Fast Ethernet”红旗5认的是
02:04.0 Ethernet controller: Accton Technology Corporation EN-1216 Ethernet Adapter (rev 11)
网卡是好的，在w2k和红旗5下可以正常上网。基本环境是通过ASUS500路由器上网的，路由器设为192.168.1.1，DHCP打开或关闭都试过，这是ubunnt的一些设置。

zj@zj:~$ lspci
00:00.0 Host bridge: Intel Corporation 82830 830 Chipset Host Bridge (rev 03)
00:02.0 VGA compatible controller: Intel Corporation 82830 CGC [Chipset Graphics Controller] (rev 03)
00:02.1 Display controller: Intel Corporation 82830 CGC [Chipset Graphics Controller]
．．． ．．．
02:04.0 Ethernet controller: Accton Technology Corporation EN-1216 Ethernet Adapter (rev 11)
．．． ．．．
zj@zj:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:90:96:20:21:b6
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::290:96ff:fe20:21b6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:5 overruns:0 frame:0
TX packets:0 errors:129 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:5 Base address:0x2400

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:16436 Metric:1
RX packets:266 errors:0 dropped:0 overruns:0 frame:0
TX packets:266 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15676 (15.3 KB) TX bytes:15676 (15.3 KB)

vi /etc/network/interfaces

auto lo
iface lo inet loopback


iface eth0 inet static
address 192.168.1.2
netmask 255.255.255.0
gateway 192.168.1.1

auto eth0

zj@zj:~$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
link-local * 255.255.0.0 U 1000 0 0 eth0
default 192.168.1.1 0.0.0.0 UG 100 0 0 eth0

vi /etc/resolv.conf

nameserver 192.168.1.1
nameserver 61.128.114.166

lspci -v
00:00.0 Host bridge: Intel Corporation 82830 830 Chipset Host Bridge (rev 03)
Flags: bus master, fast devsel, latency 0
Memory at <unassigned> (32-bit, prefetchable)
Capabilities: <access denied>

00:02.0 VGA compatible controller: Intel Corporation 82830 CGC [Chipset Graphics Controller] (rev 03) (prog-if 00 [VGA controller])
Subsystem: FIRST INTERNATIONAL Computer Inc Unknown device 2030
Flags: bus master, fast devsel, latency 0, IRQ 5
Memory at e8000000 (32-bit, prefetchable) [size=128M]
Memory at e0000000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>

00:02.1 Display controller: Intel Corporation 82830 CGC [Chipset Graphics Controller]
Subsystem: FIRST INTERNATIONAL Computer Inc Unknown device 2030
Flags: bus master, fast devsel, latency 0
Memory at f0000000 (32-bit, prefetchable) [size=128M]
Memory at e0080000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>
．．． ．．．
02:04.0 Ethernet controller: Accton Technology Corporation EN-1216 Ethernet Adapter (rev 11)
Subsystem: Accton Technology Corporation EN2242 10/100 Ethernet Mini-PCI Card
Flags: bus master, medium devsel, latency 64, IRQ 5
I/O ports at 2400
Memory at e0200400 (32-bit, non-prefetchable) [size=1K]
[virtual] Expansion ROM at e0220000 [disabled] [size=128K]
Capabilities: <access denied>

02:07.0 CardBus bridge: O2 Micro, Inc. OZ6933/711E1 CardBus/SmartCardBus Controller (rev 01)
Subsystem: FIRST INTERNATIONAL Computer Inc Unknown device 1860
Flags: bus master, stepping, slow devsel, latency 168, IRQ 5
Memory at e0201000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
Memory window 0: 34000000-37fff000 (prefetchable)
Memory window 1: 38000000-3bfff000
I/O window 0: 00002c00-00002cff
I/O window 1: 00001400-000014ff
16-bit legacy interface ports at 0001
．．． ．．．

我的问题是网卡可以PING通自己
但是ping不同路由器192.168.1.1和其他的ip，也就无法上网了。
我试了3个网卡，分别是 AN－1216笔记本原配的、 realtek8139 PCI接口的、AR5212无线网卡PCI接口的。3个网卡在ubuntu都可以正常驱动起来了，但是都无法连接到网络。2个有线网卡接上后路由器相应的指示灯就亮了可以PING通本机IP和127的IP，PING不通网关。这3个网卡在红旗下都可以正常工作。

1 ping不通的时候用arp -a 查看ARP地址表，有没有关于对端的条目。
2 直接停掉IPTABLES 再实验。

谢谢，我下班后在试一试

len@lenovo:~$ ifconfig
eth0      Link encap:以太网  硬件地址 00:90:96:20:21:b6  
          inet 地址:192.168.1.30  广播:192.168.1.255  掩码:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  跃点数:1
          接收数据包:0 错误:0 丢弃:0 过载:0 帧数:0
          发送数据包:0 错误:15 丢弃:0 过载:0 载波:0
          碰撞:0 发送队列长度:1000
          接收字节:0 (0.0 B)  发送字节:0 (0.0 B)
          中断:5 基本地址:0x2400

lo        Link encap:本地环回  
          inet 地址:127.0.0.1  掩码:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  跃点数:1
          接收数据包:30 错误:0 丢弃:0 过载:0 帧数:0
          发送数据包:30 错误:0 丢弃:0 过载:0 载波:0
          碰撞:0 发送队列长度:0
          接收字节:1804 (1.7 KB)  发送字节:1804 (1.7 KB)

len@lenovo:~$ ip route
192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.30
169.254.0.0/16 dev eth0  scope link  metric 1000
default via 192.168.1.1 dev eth0  metric 100

en@lenovo:~$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:90:96:20:21:b6 brd ff:ff:ff:ff:ff:ff
len@lenovo:~$ route
内核 IP 路由表
目标            网关            子网掩码        标志  跃点   引用  使用 接口
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0
link-local      *               255.255.0.0     U     1000   0        0 eth0
default         192.168.1.1     0.0.0.0         UG    100    0        0 eth0 （这一条大约30秒到一分钟才出来，有点慢）

len@lenovo:~$ sudo iptables -P INPUT ACCEPT
len@lenovo:~$  sudo iptables -P OUTPUT ACCEPT  （不知道这样禁用 iptables对不对?)
len@lenovo:~$ ping 192.168.1.1                             (aswll500的ip，做网关的）
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
From 192.168.1.30 icmp_seq=1 Destination Host Unreachable
From 192.168.1.30 icmp_seq=2 Destination Host Unreachable
From 192.168.1.30 icmp_seq=3 Destination Host Unreachable

--- 192.168.1.1 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4019ms
, pipe 3

len@lenovo:~$ ping 192.168.1.30         （本机ip)
PING 192.168.1.30 (192.168.1.30) 56(84) bytes of data.
64 bytes from 192.168.1.30: icmp_seq=1 ttl=64 time=0.105 ms
64 bytes from 192.168.1.30: icmp_seq=2 ttl=64 time=0.082 ms

--- 192.168.1.30 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.082/0.093/0.105/0.015 ms
len@lenovo:~$ ping 192.168.1.8        (同局域网的另一台机子）
PING 192.168.1.8 (192.168.1. 56(84) bytes of data.
From 192.168.1.30 icmp_seq=1 Destination Host Unreachable
From 192.168.1.30 icmp_seq=2 Destination Host Unreachable
From 192.168.1.30 icmp_seq=3 Destination Host Unreachable

--- 192.168.1.8 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4018ms
, pipe 3

在做ping命令前，arp 和arp -a系统是没有任何反应的，指对于arp命令没有命令的结果，直接返回到len@lenovo:~$ 状态

len@lenovo:~$ arp
地址                     类型    硬件地址            标志  Mask            接口
192.168.1.1                      (incomplete)                              eth0
len@lenovo:~$ arp -a
? (192.168.1.1) 位于 <incomplete> 在 eth0
len@lenovo:~$

这是另一台机子的arp结果，同一网络的
zj@zj:~$ arp -a
WL-500gp (192.168.1.1) 位于 00:1A:92:7E:69:65 [ether] 在 eth0
zj@zj:~$ arp
地址                     类型    硬件地址            标志  Mask            接口
WL-500gp                 ether   00:1A:92:7E:69:65   C                     eth0


谢谢你的帮助，请大家帮忙给看看问题出在哪里了。

[ 本帖最后由 zchwy 于 2008-8-6 23:34 编辑 ]

奇怪的很，我用的是8.04DVD版本的，装了三台机子，就这台联想k66不行，更夸张的是一个台式机，装完了什么也不用设置，直接上网去了，所有的驱动直接安装了，在网上一次全部更新完成，真是爽。这台笔记本折腾我近一个月了，有点挺不住的架势了，唉

沉的好快哟，请大家帮帮我。

我不太清楚你的这个系统停掉IPTABLES的方法，你自己找找。
2、贴出ethtool eth0的结果。

len@lenovo:~$ ethtool eth0
Settings for eth0:
Cannot get device settings: Operation not permitted
Cannot get wake-on-lan settings: Operation not permitted
Cannot get link status: Operation not permitted
No data available


len@lenovo:~$ dmesg
......

[   16.547204] PCI: Setting latency timer of device 0000:00:1e.0 to 64
[   16.547223] PCI: setting IRQ 5 as level-triggered
[   16.547228] PCI: Found IRQ 5 for device 0000:02:07.0
[   16.547234] PCI: Sharing IRQ 5 with 0000:00:02.0
[   16.547239] PCI: Sharing IRQ 5 with 0000:00:1d.0
[   16.547249] PCI: Sharing IRQ 5 with 0000:02:01.0
[   16.547254] PCI: Sharing IRQ 5 with 0000:02:04.0
[   16.547262] PCI: Setting latency timer of device 0000:02:07.0 to 64
[   16.547278] PCI: Found IRQ 5 for device 0000:02:07.1
[   16.547289] PCI: Sharing IRQ 5 with 0000:00:1f.3
[   16.547293] PCI: Sharing IRQ 5 with 0000:00:1f.5
[   16.547303] PCI: Setting latency timer of device 0000:02:07.1 to 64
[   16.547328] NET: Registered protocol family 2
[   16.549831] Time: tsc clocksource has been installed.
[   16.581971] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
[   16.582424] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[   16.582766] TCP bind hash table entries: 16384 (order: 5, 131072 bytes)
[   16.583157] TCP: Hash tables configured (established 16384 bind 16384)
[   16.583164] TCP reno registered
[   16.594149] checking if image is initramfs... it is
[   17.778963] Freeing initrd memory: 7690k freed
[   17.779534] Simple Boot Flag at 0x36 set to 0x1
[   17.780295] audit: initializing netlink socket (disabled)
[   17.780330] audit(1218199646.992:1): initialized
[   17.784574] VFS: Disk quotas dquot_6.5.1
[   17.784770] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[   17.785286] io scheduler noop registered
[   17.785296] io scheduler anticipatory registered
[   17.785299] io scheduler deadline registered
[   17.785325] io scheduler cfq registered (default)
[   17.785358] Boot video device is 0000:00:02.0
[   17.785869] isapnp: Scanning for PnP cards...
[   18.139545] isapnp: No Plug & Play device found
[   18.198482] Real Time Clock Driver v1.12ac
[   18.198631] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
[   18.198818] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[   18.200057] 00:12: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[   18.201757] RAMDISK driver initialized: 16 RAM disks of 65536K size 1024 blocksize
[   18.201889] input: Macintosh mouse button emulation as /devices/virtual/input/input0
[   18.202097] PNP: PS/2 Controller [PNP0303,PNP0f13] at 0x60,0x64 irq 1,12
[   18.204793] i8042.c: Detected active multiplexing controller, rev 1.1.
[   18.206556] serio: i8042 KBD port at 0x60,0x64 irq 1
[   18.206567] serio: i8042 AUX0 port at 0x60,0x64 irq 12
[   18.206572] serio: i8042 AUX1 port at 0x60,0x64 irq 12
[   18.206577] serio: i8042 AUX2 port at 0x60,0x64 irq 12
[   18.206582] serio: i8042 AUX3 port at 0x60,0x64 irq 12
[   18.221052] mice: PS/2 mouse device common for all mice
[   18.221259] EISA: Probing bus 0 at eisa.0
[   18.221271] Cannot allocate resource for EISA slot 1
[   18.221276] Cannot allocate resource for EISA slot 2
[   18.221281] Cannot allocate resource for EISA slot 3
[   18.221305] EISA: Detected 0 cards.
[   18.221311] cpuidle: using governor ladder
[   18.221315] cpuidle: using governor menu
[   18.221609] NET: Registered protocol family 1
[   18.221671] Using IPI No-Shortcut mode
[   18.221744] registered taskstats version 1
[   18.221895]   Magic number: 4:121:784
[   18.222032]   hash matches device ptyq6
[   18.222073] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[   18.222077] EDD information not available.
[   18.222565] Freeing unused kernel memory: 364k freed
[   18.256934] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[   19.632588] fuse init (API version 7.9)
[   19.693972] thermal: Unknown symbol acpi_processor_set_thermal_limit
[   20.238748] usbcore: registered new interface driver usbfs
[   20.238799] usbcore: registered new interface driver hub
[   20.255765] usbcore: registered new device driver usb
[   20.299346] SCSI subsystem initialized
[   20.467789] Linux Tulip driver version 1.1.15 (Feb 27, 2007)
[   20.467897] PCI: Found IRQ 5 for device 0000:02:04.0
[   20.467904] PCI: Sharing IRQ 5 with 0000:00:02.0
[   20.467909] PCI: Sharing IRQ 5 with 0000:00:1d.0
[   20.467920] PCI: Sharing IRQ 5 with 0000:02:01.0
[   20.467926] PCI: Sharing IRQ 5 with 0000:02:07.0
[   20.468423] tulip0:  MII transceiver #1 config 1000 status 786d advertising 05e1.
[   20.469185] tulip0:  MII transceiver #2 config 1000 status 7849 advertising 05e1.
[   20.469944] tulip0:  MII transceiver #3 config 1000 status 7849 advertising 05e1.
[   20.470704] tulip0:  MII transceiver #4 config 1000 status 7849 advertising 05e1.
[   20.471429] eth0: ADMtek Comet rev 17 at Port 0x2400, 00:90:96:20:21:b6, IRQ 5.
[   20.504502] USB Universal Host Controller Interface driver v3.0
[   20.504646] PCI: Found IRQ 5 for device 0000:00:1d.0
[   20.504655] PCI: Sharing IRQ 5 with 0000:00:02.0
[   20.504668] PCI: Sharing IRQ 5 with 0000:02:01.0
[   20.504673] PCI: Sharing IRQ 5 with 0000:02:04.0
[   20.504678] PCI: Sharing IRQ 5 with 0000:02:07.0
[   20.504695] PCI: Setting latency timer of device 0000:00:1d.0 to 64
[   20.504703] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[   20.505141] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
[   20.505178] uhci_hcd 0000:00:1d.0: irq 5, io base 0x00001800
[   20.505432] usb usb1: configuration #1 chosen from 1 choice
[   20.505479] hub 1-0:1.0: USB hub found
[   20.505492] hub 1-0:1.0: 2 ports detected
[   20.520402] libata version 3.00 loaded.
[   20.629692] PCI: Enabling device 0000:00:1f.1 (0005 -> 0007)
[   20.629712] PCI: setting IRQ 10 as level-triggered
[   20.629718] PCI: Assigned IRQ 10 for device 0000:00:1f.1
[   20.629800] PCI: Setting latency timer of device 0000:00:1f.1 to 64
[   20.656542] ata_piix 0000:00:1f.1: version 2.12
[   20.656579] PCI: Found IRQ 10 for device 0000:00:1f.1
[   20.656662] PCI: Setting latency timer of device 0000:00:1f.1 to 64
[   20.672397] scsi0 : ata_piix
[   20.687947] scsi1 : ata_piix
[   20.688061] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x1820 irq 14
[   20.688066] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x1828 irq 15
[   20.847553] usb 1-1: new full speed USB device using uhci_hcd and address 2
[   20.852115] ata1.00: ATA-6: HTS424040M9AT00, MA2OA71A, max UDMA/100
[   20.852123] ata1.00: 78140160 sectors, multi 16: LBA48
[   20.868030] ata1.00: configured for UDMA/100
[   20.887224] FDC 0 is a post-1991 82077
[   21.011053] usb 1-1: configuration #1 chosen from 1 choice
[   21.299648] ata2.00: ATAPI: SAMSUNG CD-ROM SN-124, q008, max UDMA/33, CDB intr
[   21.471523] ata2.00: configured for UDMA/33
[   21.471790] scsi 0:0:0:0: Direct-Access     ATA      HTS424040M9AT00  MA2O PQ: 0 ANSI: 5
[   21.472270] scsi 1:0:0:0: CD-ROM            SAMSUNG  CD-ROM SN-124    q008 PQ: 0 ANSI: 5
[   21.564842] Driver 'sd' needs updating - please use bus_type methods


[  104.019862] Bluetooth: RFCOMM ver 1.8
[   69.526978] [drm] Initialized drm 1.1.0 20060810
[   69.534414] PCI: Found IRQ 5 for device 0000:00:02.0
[   69.535352] PCI: Sharing IRQ 5 with 0000:00:1d.0
[   69.535967] PCI: Sharing IRQ 5 with 0000:02:01.0
[   69.536568] PCI: Sharing IRQ 5 with 0000:02:04.0
[   69.537168] PCI: Sharing IRQ 5 with 0000:02:07.0
[   69.537772] PCI: Setting latency timer of device 0000:00:02.0 to 64
[   69.538697] [drm] Initialized i915 1.6.0 20060119 on minor 0
[   69.539453] PCI: Setting latency timer of device 0000:00:02.1 to 64
[   69.540318] [drm] Initialized i915 1.6.0 20060119 on minor 1
[  112.231279] NETDEV WATCHDOG: eth0: transmit timed out
[  112.232686] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  121.315626] NETDEV WATCHDOG: eth0: transmit timed out
[  121.317032] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[   84.209413] NETDEV WATCHDOG: eth0: transmit timed out
[   84.210812] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  140.571793] NETDEV WATCHDOG: eth0: transmit timed out
[  140.573207] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[   98.436376] NETDEV WATCHDOG: eth0: transmit timed out
[   98.437769] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  106.432124] NETDEV WATCHDOG: eth0: transmit timed out
[  106.433518] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  175.184507] NETDEV WATCHDOG: eth0: transmit timed out
[  175.185912] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  183.179165] NETDEV WATCHDOG: eth0: transmit timed out
[  183.180570] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  191.173820] NETDEV WATCHDOG: eth0: transmit timed out
[  191.175224] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  199.168482] NETDEV WATCHDOG: eth0: transmit timed out
[  199.169888] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  207.978366] NETDEV WATCHDOG: eth0: transmit timed out
[  207.979771] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  140.823131] NETDEV WATCHDOG: eth0: transmit timed out
[  140.824523] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  148.112993] NETDEV WATCHDOG: eth0: transmit timed out
[  148.114392] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  237.684276] NETDEV WATCHDOG: eth0: transmit timed out
[  237.685679] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  245.678933] NETDEV WATCHDOG: eth0: transmit timed out
[  245.680334] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  185.444884] NETDEV WATCHDOG: eth0: transmit timed out
[  185.446284] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)
[  428.278068] NETDEV WATCHDOG: eth0: transmit timed out
[  428.279474] 0000:02:04.0: tulip_stop_rxtx() failed (CSR5 0xfc07c057 CSR6 0xff970111)


len@lenovo:~$ dmesg | grep eth
[   20.471429] eth0: ADMtek Comet rev 17 at Port 0x2400, 00:90:96:20:21:b6, IRQ 5.
[   21.564842] Driver 'sd' needs updating - please use bus_type methods
[   21.567933]  sda:<4>Driver 'sr' needs updating - please use bus_type methods
[   41.890063] eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
[   95.697350] NETDEV WATCHDOG: eth0: transmit timed out
[  103.692040] NETDEV WATCHDOG: eth0: transmit timed out
[  112.231279] NETDEV WATCHDOG: eth0: transmit timed out
[  121.315626] NETDEV WATCHDOG: eth0: transmit timed out
[   84.209413] NETDEV WATCHDOG: eth0: transmit timed out
[  140.571793] NETDEV WATCHDOG: eth0: transmit timed out
[   98.436376] NETDEV WATCHDOG: eth0: transmit timed out
[  106.432124] NETDEV WATCHDOG: eth0: transmit timed out
[  175.184507] NETDEV WATCHDOG: eth0: transmit timed out
[  183.179165] NETDEV WATCHDOG: eth0: transmit timed out
[  191.173820] NETDEV WATCHDOG: eth0: transmit timed out
[  199.168482] NETDEV WATCHDOG: eth0: transmit timed out
[  207.978366] NETDEV WATCHDOG: eth0: transmit timed out
[  140.823131] NETDEV WATCHDOG: eth0: transmit timed out
[  148.112993] NETDEV WATCHDOG: eth0: transmit timed out
[  237.684276] NETDEV WATCHDOG: eth0: transmit timed out
[  245.678933] NETDEV WATCHDOG: eth0: transmit timed out
[  185.444884] NETDEV WATCHDOG: eth0: transmit timed out
[  428.278068] NETDEV WATCHDOG: eth0: transmit timed out
[  455.583614] NETDEV WATCHDOG: eth0: transmit timed out
len@lenovo:~$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:90:96:20:21:b6 brd ff:ff:ff:ff:ff:ff
len@lenovo

[ 本帖最后由 zchwy 于 2008-8-8 14:10 编辑 ]

LZ你是说这个系统，用有线网卡可以驱动起来，但是就是无法链接网络是吗？
同时换成无线的也是这个样子对吗？

你装的红旗5 和这个UBUNNT的内核版本分别是多少。

从你的日志看，怀疑是驱动本身的问题。