HOW TO use linux as a router ???

Doea anyone know if I can share my desktop's PPP connection through
a wirless LAN, i.e. how to use a RedHat 9 as a router between a wireless
LAN and the internet connection ?
THANKS
--
dm

On Sun, 11 Apr 2004 15:00:23 GMT, dm <(E-Mail Removed)> wrote:
> Doea anyone know if I can share my desktop's PPP connection through
> a wirless LAN, i.e. how to use a RedHat 9 as a router between a wireless
> LAN and the internet connection ?


Stick these lines in your firewall script:

modprobe iptable_nat
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -t mangle -L -n -v

If you want transparent Squid proxying, use this line too:

iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128

--
-- Skylar Thompson ((E-Mail Removed))
-- http://www.cs.earlham.edu/~skylar/

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On søndag 11. april 2004, 21:50 Skylar Thompson tried to express an opinion:

> If you want transparent Squid proxying, use this line too:
>
> iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 3128

Do I understand this correct if I say this will FORCE the use of a proxy
regardless of (missing) proxy settings in the browsers (throghout the network)?

- --
Solbu - http://www.solbu.net
Remove 'ugyldig' for email
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In article <gWpec.6022$(E-Mail Removed)> Solbu <(E-Mail Removed)> wrote:

>> If you want transparent Squid proxying, use this line too:
>> iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT \
>> --to-port 3128

> Do I understand this correct if I say this will FORCE the use of a proxy
> regardless of (missing) proxy settings in the browsers (throghout the
> network)?

Only for those connecting to port 80 of a remote machine, which is certainly
the bulk of browser connections. All other ports (such as 21, 443, 8080, etc.)
will be connected exclusive of any proxy, since they don't qualify for the
REDIRECT conditions as stated.


tony

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