Hi All, I have three Linux boxes running RH7.2 and each one of these has two 3com Ethernet NICs. I am trying to do some routing stuff with these. Ethernet interfaces on these boxes shut down by its own if I do not pass the packet through them for a while. I am not able to understand why is it happening. One more thing when I use ip addr show it shows that interface is there , but ifconfig doesnt. I guess that is because ifconfig shows only the interfaces that are up. Any help on this will be really appreciable . Thanks in advance, Nitin __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com
Hi All, I have three Linux boxes running RH7.2 and each one of these has two 3com Ethernet NICs. I am trying to do some routing stuff with these. Ethernet interfaces on these boxes shut down by its own if I do not pass the packet through them for a while. I am not able to understand why is it happening. One more thing when I use “ip addr show” it shows that interface is there , but ifconfig doesn’t. I guess that is because ifconfig shows only the interfaces that are up. Any help on this will be really appreciable . Thanks in advance, Nitin __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com
On Tue, Jul 09, 2002 at 11:44:32AM -0700, nitin panjwani wrote:> Hi All, > > I have three Linux boxes running RH7.2 and each one of > these has two 3com Ethernet NICs. I am trying to do > some routing stuff with these. > > Ethernet interfaces on these boxes shut down by its > own if I do not pass the packet through them for a > while. I am not able to understand why is it > happening.I think you are running some kind of router daemon like routed, gated or Zebra. Just turn it off.> One more thing when I use ?ip addr show? it shows that > interface is there , but ifconfig doesn?t. I guess > that is because ifconfig shows only the interfaces > that are up.ifconfig -a will show it. Regards, bert -- http://www.PowerDNS.com Versatile DNS Software & Services http://www.tk the dot in .tk http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
Bert thanks for your reply It seems routing daemons are not creating problem. with: "ifconfig eth1 up " I find that I am able to make interface up again, but it disappears after a while if I do not do anything on this machine for a while and comes back again with "ifconfig eth1 up " I have another similar kind of problem. I will describe it: (R1)eth0-------eth1(R2) If for certain time I do not work on the machine then I am not able to ping the remote interface .eg eth0 from R2 and eth1 from R1.While local interfaces are pingable and ifconfig/ip addr shows that that interfaces are up on both sides. Initailly when I rebooted both machines these two boxes were mutually pingable.ip route also recognizes the availability of the networks. In this case also I am not running Any routing daemon. Any help on this will be very appreciable. Thanks in advance, Nitin __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com