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linux network (RedHat 9 and Windows2K server)

Hello,

I'm fairly new to linux, i need help with a network problem i can't not find any tutorials on how to do this. THis is what i need to do

I have one machine running Redhat 9 and i need it to act as a router to communicate with a windows 2000 advance server machine and a windows 2000 machine (client). I don't know if i need to do something with the iptables using the route command?

I serisouly don't know how to do this any type of help would be great

If you got two network interface on Linux box then it is easy job:

Run two commands first,

Code:

echo 1 >/proc/sys/net/ipv4/tcp_syncookies

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

Note you can setup above two in /etc/sysctl.conf so that they will continue after linux reboot

Code:

vi /etc/sysctl.conf

net.ipv4.ip_forward = 1

Assuming that on linux box eth0 is connected to the internet and eth1 is connected to a private LAN:

Code:



iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE



iptables --append FORWARD --in-interface eth1 -j ACCEPT

if it is ppp stuff (dial up) internet then ONLY use following and not ABOVE,

Code:

iptables --table nat --append POSTROUTING --out-interface ppp0 -j MASQUERADE



iptables --append FORWARD --in-interface eth0 -j ACCEPT        - Assuming one NIC to local LAN

It can't get easier than this

Thank you for your help.
i'll try what you told me to do.

Those first two commands yielded 'permission denied'.
I am logged in as root so I'm not sure why...