[plug] IP Forwarding problem

Phillip Steege psteege at tpg.com.au
Sun May 27 18:24:48 WST 2001


Steve Vertigan wrote:

> Phillip Steege wrote:
> > I cannot get IP forwarding to work.
> > I have two machines pappo1 (linux) and pappo (windozeME) on 192.168.0.2
> > and 192.168.0.1 respectively.
> > My linux gateway (redhat 7.1 system Linux 2.4.2-2 kernel) has a "1" in
> > /proc/sys/net/ipv4/ip_forward and it is also in
>
> Forwarding, in itself, is only useful where you have a legitimate
> network address for the computers you're forwarding for and as far as
> the internet is concerned 192.168.whatever isn't.  I think what you want
> in this case is 'IP Masquerading' or NAT.
> I can't give you the exact syntax for the 2.4 kernel as I've only done
> it with 2.0 and 2.2 and afaik 2.4 has a different setup again, but if
> you do a search on either of those two terms plus 2.4 you should find
> plenty of examples.
>

For a short time, I was able to ping the internet from the winMe machine,
but I don't know how I did it, and now I am back to where I cannot.  I will
look into IP Masquerading / NAT.


>
> > I can access the web, through the gateway,with Internet Explorer from
> > the WinME machine, but mail or ping or tracert doesn't work from the
> > windoze machine??
>
> At a guess it sounds like you have a web proxy on the gateway like
> squid, either that or you do have NAT working and you have a selective
> firewall running but it seems strange that either of these would be
> installed without your knowing about them, did you set this machine up
> yourself?
>

I am using squid and it all seems to be working fine as far as Netscape or
Konqueror are concerned
I set the machines up starting from a GPL RedHat 7.1 installation.  I just
followed the squid FAQ for setup and that all seems fine.


> --
> FreeBSD maelstrom.dyn.dhs.org 3.4-STABLE i386
>  4:40PM  up 6 days, 20:41, 2 users, load averages: 0.02, 0.11, 0.07
> Greener's Law:
>         Never argue with a man who buys ink by the barrel.




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