How do I NAT my local Lan 1

[amitatharkar]

Hi ..
I have a linux server as a Internet server. I have installed Squid to share internet connection. But I want to configure NAT for my local lan.
I have local lan network as 192.168.0.0 and i have on static ip form ISP.
I am using iptables under RH 8.0. I tried it with the nat table but not able to ping through my local lan to Internet. Any body suggest me the steps that are required for NAT.

 

[QatQat]

Let's assume that your internal network (192.168.0.0) device is eth0 on the linux box

iptables -t nat -F POSTROUTING
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE

where eth1 is your internet device. If you are on dial up then it may be ppp0


then activate ipforward

On Red Hat systems, this is controlled in /etc/sysctl.conf
You need to set net.ipv4.ip_forward=1 in this file, or the
command below will have no effect.


echo "1" >/proc/sys/net/ipv4/ip_forward


Now cat /etc/sysconfig/network and check that your gateway device is set to eth0. If not change it.


Now it should work


Bye

Qatqat




I have been happy throughout my life in thinking that samba was I kind of dance; now I live with Linux and all I do is working.