A very basic description is that it uses the ports of the public address(es)
to map to more private addresses.
I'm picking these port numbers out of the air, so don't take them literally.
But suppose your public IP from your ISP is 24.2.2.2. Internally, you're
running a 192.168 network. One of your internal machines (192.168.0.3)
makes an http request. The system running your NAT is its default gateway,
so your .0.3 machine routes the request to your NAT system. The NAT system
then repackages the request that really came from 192.168.0.3:80 as (say)
24.2.2.2:201. It then sends the request on to the web server. When the web
server replies, it replies to 24.2.2.2:201. The NAT machine then, still
having that port mapping repackages it as a packet for 192.168.0.3:80 and
sends it appropriately.
Hope this is some help. I'm hoping to find time to read the resources
Charles & Howard have referred to so I can understand more completely.
--
Daniel Wilson
CompuSoft Solutions and The Worthwhile Company http://www.worthwhile.com
Your complete e-business solution partners.
""a. ahmad"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> hi,
> can any one describe NAT Function in detail (many-to-one).
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http://www.groupstudy.com/form/read.php?f=7&i=11263&t=11245
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