On February 9, 2004 08:45 pm, Xu Congyuan, Patrick wrote: > I am upgrading from redhat 8 to redhat el es 3. I have problem with the > netowrk. > > 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-fe7e0038 > > eth1 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-fe780038 > > lo 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) Hi, I had a similar problem a few years ago with a newly build firewall. It turned out I was blocking dhcp updates. Check your firewall. Although every 10 minutes sounds a little short for a dhcp problem. Hope that helps. -- Pete Nesbitt, rhce -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
