[CentOS] Building a basic router with two nic's

centos
Wed, 16 Aug 2006 12:39:34 -0000

I need help setting up a basic routing between two nic's on my CentOS
desktop. I thought I'd understood the basics, but ... I don,t want a nat
router, just packets forwarded back and fort.

This is what I thought would do the trick, but didn't. Can someone
please give me some pointers or links so I can get this right.

# echo "1" > /proc/sys/net/ipv4/ip_forward
# route add -net 192.168.2.0 netmask 255.255.255.0 eth1
# route add -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.1.150 eth1
#
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.2.0 192.168.1.150 255.255.255.0 UG 0 0 0 eth1
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1
0.0.0.0 192.168.1.150 0.0.0.0 UG 0 0 0 eth1