I am having this problem since I set up the firewall; my syslog file is full with these messages:
fw kernel: martian source 201.225.XXX.XXX from 201.225.XXX.XXX, on dev eth1
fw kernel: ll header: ff:ff:ff:ff:ff:ff:00:a0:c5:69:0f:7c:08:00
fw kernel: martian source 192.168.10.255 from 192.168.10.10, on dev eth0
fw kernel: ll header: ff:ff:ff:ff:ff:ff:00:07:95:2e:5e:66:08:00
This is my config:
Mandrake with Shorewall over iptables, and NAT on the eth1 lan device.
Eth0 to the Internet connected to a hub, where the Internet router is connected.
Eth1 to the lan connected to a different hub (both hubs are interconnected)
I know the problem is because the fw nat is sending packages from one device to another, but I don’t know how to fix the martian sources issue.
Thanks in advanced.