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SubjectRe: Help with UDP + IP Masqueraded Networks
> I have not gotten a reply from anyone, does that mean you don't know the 
> answer or don't care?

Everybody thought someone else would answer :-)

> > > > I am trying to run some applications that pass UDP packets from my
> > > > masqueraded linux gateway from the Internet to one of my masqueraded
> > > > hosts (win 95). It appears that UDP packets are getting lost.
> > > > Do we have a fix for the IP masquerade code that works around this problem?

What are you _exactly_ trying to do and in what order?

UDP (de)masquerading (as far as implemented) for a pseuso-UDP-session
(UDP has no sessions) is initiated when a first packet is passing, from a
masqueraded host to "the outside world". Then (and only then) reply
packets (as far as you can speak about replies with UDP) from the outside
world to the masqueraded host will be demasqueraded and forwarded.

Reading your question more carefully, you _might_ want to send the "first"
UDP packet of a "session" (again, just using bad terminology) from the
outside world.

If this is what you want/need: this just can't be done with masquerading.
In future versions of Linux, IP address remapping will be supported, which
will make possible what you want to do.

-- Jos Vos <>
-- X/OS Experts in Open Systems BV | Phone: +31 20 6938364
-- Amsterdam, The Netherlands | Fax: +31 20 6948204

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