From my firewall script in BASH lines like this is what you should be thinking of using:
iptables -t nat -A POSTROUTING --source $LAN_IP_RANGE --out-interface $EXT_IFACE -j SNAT --to-source $EXT_IP
Lee W wrote:
Johnny Hughes wrote:
<snip>
You need to do ip-masquerading to pass traffic thru a linux box as a gateway. That requires 2 NICs and an iptables script which does masquerading
I use this script to setup that kind of box: http://ldp.hughesjr.com/HOWTO/IP-Masquerade-HOWTO/stronger-firewall-examples...
Is it absolutely necessary to use IP-Masq / NAT in order to setup Linux as a Router?
I'm trying to setup a few Linux machines (Centos of course) as convential routers as opposed to Gateways so that I can learn more about routing between them on various Subnets. All the How-To's I've found talk about Masq, I would appreciate if anyone can point me in the direction of a convential Linux router howto.
Thanks in advance
Regards
Lee _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos