The basic difference is that IP masq is typically what proxies use
where a
single ip address is employed in place of host ip
addresse(s) "behind the proxy" - as part of the proxy function. NAT
can be thought of as a superset of the ip masq where you can have
a "many-to-one" (same as IP masq) or a "many-to-small" (more typical because
of "why" NAT is employed). For example, a typical usage would be
to have the network access device (router or SPIF FW) translate a
larger Class A network into a smaller "routable" class C network due to
networking considerations. (there are other NAT models as well.)
I would also say that the reason for employing NAT is not the same as
employing ip masq. I don't believe NAT was designed to be a security
mechanism, while ip masq was (as part of the proxy function).
/bob mcmahon, cissp
Rajesh Divakaran wrote:
Hi All,
I have a basic doubt,
What is the difference between IP Masquarding and NAT...???
Are they the SAME..??
Rgds
Rajesh
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