This server has two network cards installed. One is connected to our internal network. The other one is connected to internet.
The problem is with the external network.
When the server is up for a while, the external network is down. It means it cannot be accessed via its external ip address. The internal network is working fine.
I found out the external network can be resumed by "ifdown eth1; ifup eth1", which means to restart the network card.
When the external network is down, I run "ifconfig", and the result shows eth1 is "UP" and working. I really cannot figure out what caused this problem. Now what I can do is to restart the "eth1" every 10 minutes.
Any suggestion?
The result of "ifconfig" is shown below.
eth0 Link encap:Ethernet HWaddr 00:03:47:F1:94:5A
inet addr:192.168.42.248 Bcast:192.168.42.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22271 errors:0 dropped:0 overruns:0 frame:0
TX packets:9294 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3229764 (3.0 Mb) TX bytes:2858019 (2.7 Mb)
Interrupt:10 Base address:0x1400 Memory:fe7e0000-fe7e0038eth1 Link encap:Ethernet HWaddr 00:03:47:F1:94:5C
inet addr:202.73.42.108 Bcast:202.73.42.111 Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:20886 errors:0 dropped:0 overruns:0 frame:0
TX packets:12747 errors:0 dropped:0 overruns:0 carrier:0
collisions:4 txqueuelen:1000
RX bytes:3119008 (2.9 Mb) TX bytes:5289086 (5.0 Mb)
Interrupt:5 Base address:0x1440 Memory:fe780000-fe780038lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:200665 errors:0 dropped:0 overruns:0 frame:0
TX packets:200665 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:19471584 (18.5 Mb) TX bytes:19471584 (18.5 Mb)
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