[LUG] NAT/PAT/IP-Masquerade

[Jon Still <jon at termisoc.org>]

Quick thing I found out recently!  If you say "IP Masquerade" to a
networking person and they go "duhhhh", then tell them it's PAT (Port
Address Translation) under another name.

The difference between PAT and NAT is that NAT tends to use a pool of
addresses and maps a single private address to a single public address
(either statically or dynamically).  PAT on the other hand (as we
know) uses a single IP address to represent the entire private network and
does the forwarding based on other IP information (src/dest ports and
addresses).

So there we go.  Here endeth today's lesson. :)

J.

-- 
Jon Still				E-mail: jon at termisoc.org
System Administrator			Web:	http://www.termisoc.org/~jon/
TermiSoc - UPSU Computing Society	Tel:	+44 (0)7977 066087

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