redhat arp problem with two network interface

oldowl · 08-04-2008, 08:19 AM

Hello friends.
I have a problem with my redhat server and need your help.server
have two NIC. eth0 : 150.0.0.70 , eth1 : 128.212.250.84 . when one
host want to contact with eth0 via a router, the server returns eth1 mac address and host cannot ping 150.0.0.70.when I wrote an arp command in my router problem solved.I want to know what's wrong in my server.
thanks for your guides.

linuxlover.chaitanya · 08-05-2008, 01:03 AM

Is it interchanging the names for interfaces like eth0 for you may be eth1.

farslayer · 08-05-2008, 10:31 AM

so have you used the command arp, to view the arp table on your server ?

how about posting the output of /sbin/ifconfig

Are the two interfaces connected to separate network segments ? or do you have them plugged into the same switch.. ?

Is your switch a managed switch, and does it store an arp table of it's own ?

oldowl · 08-05-2008, 11:08 PM

Interfaces connected to seperate network segments.But when I ping 150.0.0.70 from my route,it has learned eth1 mac address and ping failed.I think it is a server error .Whats your idea?