SNAT
From Wikipedia, the free encyclopedia
In computer networking, the process of network address translation done in a secure way (also known as source network address translation or SNAT for short). This process involves re-writing the source and/or destination addresses of IP packets as they pass through a router or firewall.
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[edit] Overview
The meaning of SNAT is actually debatable. Microsoft says it means Secure NAT, in regards to the ISA Server extension discussed below. Per Cisco Systems, SNAT means Stateless NAT. And finally SNAT is often referred to as Source NAT. Given its counterpart, DNAT, or Destination Network Address Translation, it's easy to see where this assumption comes from.
[edit] Drawbacks
[edit] Benefits
SNAT enhances the underlying NAT functionality by enabling access control for protocols like FTP, ICMP, H.323, and PPTP. The packages have in internet the router's adress.
