Hi guys

* My hardware layout looks like this:

Windows XP
DHCP (192.168.1.100/24)
|
|
Static (192.168.1.5/24)
Slackware Linux
Static (192.168.2.5/24)
|
|
Static (192.168.2.1/24)
iBurst Desktop Modem
DHCP ? (whatever assigned)
|
|
Internet

* route -n gives:

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
41.208.200.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0

* Once the Slack box is connected to the internet the following command is run:

/usr/sbin/iptables -t nat -A POSTROUTING -j MASQUERADE

all other rules are empty when I check...

* cat /proc/sys/net/ipv4/ip_forward yields:

1

* From the Windows XP host I can:
* ping any host on the internet.
* tracert to any host on the internet.
* SSH (putty) to any host on the internet.
* telnet on say port 110

(the host must obviously be configured to respond to the above request...)

* If squid is started and the following command is run:
usr/sbin/iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128

then browsing works perfectly

-------------------------------------------------------------------------

I can not browse the internet with IE. The page is found but the browser waits indefinately for data.

Could someone please enlighten me? I am deliberately trying to configure a completely open gateway with the least configuration necessary and no proxy for browsing.

Some info on usefull iptables logging for this situation would also be greatly appreciated.

Thanks

You could have MTU issues, fix with
An may be fix the masquerade as well as not you are doing masquerading on all interfaces