> -----Original Message----- > From: Reaves, Timothy CECOM RDEC STCD JANUS > [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, December 12, 2001 7:26 PM > To: SecurityBasics > Subject: RE: NAT/PAT (Hide NAT) Vulnerabilities? > > could someone please explain PAT?
Instead of allocating an outside address per insider address as in the case of NAT, PAT includes port no in the translation process. For example, with PAT, the following scenario is possible: inside outside 172.17.1.1:4567 202.100.100.1:2345 172.17.1.2:5678 202.100.100.1:2354 You can read more about the general concept here: http://www.cisco.com/warp/public/cc/pd/iosw/ioft/ionetn/prodlit/1195_pp.htm
