I am currently using redhat as a router, it gets an ip from my isp at eth0 and the dhcp is active at eth1. now the win2k box recieves an IP, and is able to ping IPs on the net, but It cant resolve names.. how do I fix this? domain-name-servers has a valid address, here is my iptables script if it helps:

#!/bin/sh
IPTABLES=/sbin/iptables
echo "1" > /proc/sys/net/ipv4/ip_forward
$IPTABLES -P INPUT ACCEPT
$IPTABLES -F INPUT
$IPTABLES -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A INPUT -m state --state NEW -i ! eth0 -j ACCEPT
$IPTABLES -A INPUT -j DROP
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -F OUTPUT
$IPTABLES -P FORWARD DROP
$IPTABLES -F FORWARD
$IPTABLES -t nat -F
$IPTABLES -A FORWARD -i eth0 -o eth1 -m state --state ESTABLISHED,RELATED -ACCEPT
$IPTABLES -A FORWARD -i eth1 -o eth0 -j ACCEPT
$IPTABLES -A FORWARD -j LOG
$IPTABLES -t nat -A POSTROUTING -o eth0 -j MASQUERADE

Thanks.

It seems your W2k box doesn't know where to look for a DNS server.
Check that the DNS setting on the W2k box points to the nameserver your Linux box uses.

u said u have dhcp on eht1....

within the dhcp conf file there is a live saying
"option domain-name-servers"

incldeu on this line...ur machines ip..as well as the nameserver(s) of ur ISP....
as a result the the win2k box will look for all these adresses for ns lookup.

worked and was a great solution for me....

let i know