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SubjectRe: IP Firewalling/Redirect
On Wed, Jan 06, 1999 at 09:53:20AM +1100, John Newnham wrote:
> In article <19990103234550.A3743@jimco-fwt.com> you write:
> > On Sun, Jan 03, 1999 at 05:50:38AM -0600, Major'Trips' wrote:
> > > Problems came when I tried to ping/telnet ..ect.. ( use anything
> > > other then nslookup ). The request would hang and I would get back
> > > something to the aspect of "host not found" after a timeout period.
> ...
> > Thusly I would reccomend that apon handling a redirection on
> > the input I would think the output of that port would need to
> > be translated in some way to perform a trully transparent
> > feature.
>
> UDP is a datagram protocol. It does not form a virtual circuit.
>
> TCP is a connected protocol. It _does_ form a circuit, as soon as
> the connection is made. The circuit carries data in both directions.
>
> You have redirected the UDP traffic flowing in one direction.
> You have _not_ redirected the UDP traffic flowing in the other
> direction.
>
> Things are working exactly as they are designed to work.
>
> bfn,
>
> ashtray

I was not aware that redirection could occure on the outbound
rule. Actually. Looking at the documentation I don't see that
it can.

--
"Reality is what you can get away with!"
++Robert Anton Wilson
Major'Trips'
E-Mail : shadow@cyberwizards.com || major@jimco-fwt.com
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