Re: Dual Homed Network Problem

[Adam Aube <aaube01@baker.edu>]

Mostafa wrote:

> I have Debian 3.0 on Ultra 10 SPARC machine. It has two network interfaces
> eth0 on 192.168.1.0 with IP 192.168.1.20
> eth1 on 10.5.5.0 with IP 10.5.5.20

> The problem that I have is that machines on the 10.5.5.x subnet cannot
> ping the IP 192.168.1.20 and machines on 192.168.1.x subnet cannot ping
> the IP 10.5.5.20.This is only unique to this box. Other dual homed
> machines running Windows or Mandrake are accessible from both sides.

I remember a similar problem coming up on the list recently. Check the
arp_filter setting on that system:

cat /proc/sys/net/ipv4/conf/all/arp_filter

It it's set to 1, set it to 0 (using either echo or sysctl).

See if that helps.

Adam