see this tutorial
http://www.yolinux.com/TUTORIALS/LinuxTutorialIptablesNetworkGateway.html

and yes u can save ur configuration without any script, see iptables-save
man page <http://www2.yo-linux.com/cgi-bin/man.cgi?topic=iptables-save>

On 7/14/07, Abdallah <[EMAIL PROTECTED]> wrote:
>
>
>
> On 7/14/07, rage <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> > third,yes Abdallah,u described exactly what i want to do,and also
> > yes,i have been searching the net in a whole different field, the
> > terms u r suggesting seem more logical.
> >
> > 4th,i did all what u said (adding the sbin when needed) and it didnt
> > work,do i need to restart anything?and another q,will these setings u
> > r giving me be automaticly saved?
>
>
>
> Well.. Did not work does not tell us much . We need to know where the not
> working is happening. :)
>
> 1-   can you ping the linux box from windows ?
>
> 2- what is the output of "ipconfig /all "  on windows ?
>
> 3- what is the output of:
> -  iptables -L -t nat
> - route
> - ifconfig
>
> on linux ?
>
>
> Just for starter. :)
>
>
> The iptables commands lines I sent you will be lost the next time you
> reboot..  You will need to put then on a shell script thats is executed at
> booting but that is for later ..
>
> Abdallah
>
>
>
>
> On Jul 14, 9:09 pm, Abdallah < [EMAIL PROTECTED]> wrote:
> > > So, your linux box dials your pppoe  to your DSL provider.  You want
> > your
> > > windows box to to use the Internet through the Linux box.  Right?
> > >
> > > Here is what you need to do concept wise.
> > >
> > > 1- Your linux box must do NAT for your network. (through
> > IPTABLES  rules)
> > >
> > > 2- Your Win box must be configured to use Linux box IP as the default
> > > gateway. TCPIP config
> > >
> > > searching for "Linux NAT setup windows" will lead you to so many pages
> >
> > > discussing the setup you want to have.
> > >
> > > http://www.aboutdebian.com/proxy.htm  is a good start..
> > >
> > > What you are trying to do will be accomplished with 3-4 commands.  You
> > just
> > > need to understand the concept behind it.
> > >
> > > on linux issue following commands:
> > >
> > > modprobe iptable_nat
> > > iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
> > > iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
> > > echo 1 > /proc/sys/net/ipv4/ip_forward
> > >
> > > on windows:
> > >
> > > - an IP from the same subnet as linux box
> > > - tcpip conf:  DNS ips .+ linux IP as gateway.
> > >
> > > done.
> > >
> > > Please let us know how things turn out with you.
> > >
> > > Abdallah
> > >
> > > On 7/14/07, rage <[EMAIL PROTECTED]> wrote:
> > >
> > >
> > >
> > > > it is enabled, didnt work :D
> > >
> > > > On Jul 14, 8:19 pm, "Al-Faisal El-Dajani" <[EMAIL PROTECTED]>
> > > > wrote:
> > > > > I ran into that problem once, you solve it by enabling ip
> > forwarding.
> > > > Try
> > > > > this:
> > > > > echo 1 > /proc/sys/net/ipv4/ip_forward
> > >
> > > > > I don't know how to automatically enable this, and i'm fairly sure
> > that
> > > > this
> > > > > would solve it for you.
> > >
> > > > > On 7/14/07, rage <[EMAIL PROTECTED]> wrote:
> > >
> > > > > > Hi all im a linux newbie,i recently downloaded and installed
> > fedora 7
> > > > > > on my computer,which also has a windows xp installed on it,but
> > thats
> > > > > > not relevant, my problem is the following:
> > > > > > i have another windows xp based computer, an adsl modem,and a
> > switch,
> > > > > > so the the modem,windows xp computer, and the fedora 7 computer
> > are
> > > > > > all connected to the switch,and i can easily connect to the
> > internet
> > > > > > using the fedora 7 computer,where i created the adsl connection
> > using
> > > > > > the network configuration panel in the nome desktop,what i need
> > is for
> > > > > > my fedora 7 computer to provide the internet connection to the
> > windows
> > > > > > xp computer through the switch,in other words,i need the fedora
> > 7
> > > > > > computer to be the default gateway, this was my previous
> > configuration
> > > > > > when both my computers where windows xp based,i tried simply
> > changing
> > > > > > the ip to a static one putting both computers in the same class
> > etc
> > > > > > like i would do in a windows xp environment,but of course it
> > didn't
> > > > > > work,or our lives would be easy,contradicting the fact that life
> > is a
> > > > > > pain,so if anyone has any idea.im all ears!
> > >
> > > > > > thank you :D!
> > >
> > > > > --
> > > > > Al-Faisal El-Dajani
> > > > > Phone: +962-7-77 799 781
> > > > > P.O Box: 140056
> > > > > 11814 Amman, Jordan
> >
> >
> >
>
> >
>

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