I have installed Fedora 8 on an old PC to use as a home network and I am having trouble getting a Windows PC running XP to get through to the internet, but I am able to access the internet from the Linux box with no issues. I can ping the gateway on eth0 from the Linux box, but I can't ping it from the windows PC. I am able to ping the IP address for eth0 from the Windows PC. My internet gateway is a modem/router from Hughes net. I also have a Netgear router between the Linux box and the Windows PC, but there doesn't appear to be any issues because I can ping both NICs from the Windows PC. I have pasted my Linux NIC config below. Any help would be appreciated.

# D-Link System Inc RTL8139 Ethernet
DEVICE=eth1
BOOTPROTO=none
HWADDR=00:40:05:86:22:8E
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
NETMASK=255.255.255.0
IPADDR=192.168.1.1

# ADMtek NC100 Network Everywhere Fast Ethernet 10/100
DEVICE=eth0
BOOTPROTO=none
HWADDR=00:0C:41:21:1B:B2
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
NETMASK=255.255.255.0
IPADDR=192.168.0.2
GATEWAY=192.168.0.1

Did you enable IP Forwarding, to forward packets between NIC's?

Did you enable IP Forwarding toforward packets between NIC's?

IP Forwarding is enabled:

# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 1

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

Is your linux machine acting as a gateway for windows machine? If yes you might have squid handy. If you do not want squid you will still need iptables to forward the packets.

it is running now!!

i was having troubles with iptables. as soon as i turned off iptables the clients got access to internet

By turning off the iptables though, aren't you exposing the network to easy intrusion? I'm not sure I want to go that route....

I tried messing with masquerading last night, but I'm not sure if I am doing it right. I am using the Fedora GUI and everytime I try masquerading eth0, I get a message from SE Linux stating that it wouldn't let the change occur. I switched SE to permissive mode, and I think it went through, but I am still not able to get any of the clients access to the internet. Any suggestions would be appreciated. I am getting very frustrated...........