p2p NAT solution ?

I have heard that p2p application won't work on NAT environment. What is
the solution for this . I MUST use both NAT and p2p.

Regards,
Tejas Kokje

Tejas Kokje wrote:
> I have heard that p2p application won't work on NAT environment. What is
> the solution for this . I MUST use both NAT and p2p.
>
> Regards,
> Tejas Kokje

A couple solutions are available:

Port forwarding. Set the NAT Box/Router to forward the incoming ports
that you need to the machine that you want that particular service to
run on. This is a great solution for one machine, or machines that do a
few services, but if you have multiple machines on your network that
need connectivity to P2P type applications then the solution is a SOCKS
style proxy. SOCKS allows you to direct all of the traffic behind the
NAT to a single port regardless of what it is and you give that port all
of the incomming access it needs and thus are only opening up one
machine to the net. The danger with using SOCKS is it has to be
configured right or your proxy is available to the net. Not a good
thing, double check it before you say "finished".

"Timbertea" <(E-Mail Removed)> wrote in message
news:jamZb.11792$(E-Mail Removed) m...
> Tejas Kokje wrote:
> > I have heard that p2p application won't work on NAT environment. What is
> > the solution for this . I MUST use both NAT and p2p.
> A couple solutions are available:
>
> Port forwarding. Set the NAT Box/Router to forward the incoming ports
> that you need to the machine that you want that particular service to
> run on. This is a great solution for one machine, or machines that do a
> few services, but if you have multiple machines on your network that
> need connectivity to P2P type applications then the solution is a SOCKS
> style proxy. SOCKS allows you to direct all of the traffic behind the
> NAT to a single port regardless of what it is and you give that port all
> of the incomming access it needs and thus are only opening up one
> machine to the net. The danger with using SOCKS is it has to be
> configured right or your proxy is available to the net. Not a good
> thing, double check it before you say "finished".

I agree totally. It's worth pointing out that most P2P applications
will let you set their TCP and/or UDP port(s). You can then use
port-forwarding to each specific machine for it's specific port.

If you're just using one machine for the P2P app then this doesn't
matter too much but remember than if you forward all ports you
open your client Windoze box to the world (bar one or two very
small MS security thingies).

Cheers,

Dave.