遇到lenny的网络问题

安装完lenny后发现上网5分钟不到就解析不了域名了，dns已经设置成我们这电信的了，必须重新插拔一次网线才能继续。。。以前从没遇到过这样的问题，啥原因呢？

是拨号上网？把cat /etc/network/interfaces、ifconfig和route -N 运行结果贴出看下

debian:~# cat /etc/network/interfaces
# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#allow-hotplug eth0
auto eth0
iface eth0 inet static
address 192.168.0.124
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1
# dns-* options are implemented by the resolvconf package, if installed
# dns-nameservers 218.2.135.1

# eth0:1
auto eth0:1
iface eth0:1 inet static
address 192.168.0.125
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
debian:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:24:21:58:13:f4
inet addr:192.168.0.124 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::224:21ff:fe58:13f4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:26917 errors:0 dropped:1017590213 overruns:0 frame:0
TX packets:985 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1838728 (1.7 MiB) TX bytes:579984 (566.3 KiB)
Interrupt:221

eth0:1 Link encap:Ethernet HWaddr 00:24:21:58:13:f4
inet addr:192.168.0.125 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:221

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:3852 errors:0 dropped:0 overruns:0 frame:0
TX packets:3852 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2151687 (2.0 MiB) TX bytes:2151687 (2.0 MiB)

debian:~# route -N
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0

你如果是拨号上网把网关注释掉：
# The primary network interface
#allow-hotplug eth0
auto eth0
iface eth0 inet static
address 192.168.0.124
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
＃gateway 192.168.0.1
# dns-* options are implemented by the resolvconf package, if installed
# dns-nameservers 218.2.135.

是不是定义了一个不存在的网关？

在你网络通时：
tracert http://www.google.com
贴出结果

把网关注释的话就上不了了，这个网关是路由的。

很奇怪怎么会出现这样的问题？！现在怀疑是路由的问题了，因为换了个带负载平衡的路由，然后接了3条ADSL进来，如果是路由的问题的话，那原来用的CentOS倒是一直好好的