On Thursday 27 November 2003 1:14 pm, Ray Leach wrote:
> Halflife like most network games uses UDP, so should be able to work
> through nat.
I'm not sure I see the reasoning here. Just because something uses UDP
doesn't automatically mean it will work through nat?
The criterion for whether a protocol will work through nat or not is whether
the IP address that each end-system thinks it has gets embedded in the
communication somewhere or not. If those addresses do get embedded in the
packet contents, then it won't work through nat without a helper which
understands where and how the embedding is done, and can fiddle about with
it.
I don't think it makes any difference whether the packets get to the other end
by TCP, UDP or anything else?
Antony.
--
The first fifty percent of an engineering project takes ninety percent of the
time, and the remaining fifty percent takes another ninety percent of the
time.
Please reply to the list;
please don't CC me.
