01-25-2013, 03:30 PM
Hi, just have query regarding answer provided for this question.
Q. What happens when computers on a private network attempt to connect to the internet through a Cisco router running PAT?
Correct answer: The router uses the same IP address but a different TCP source port number for each connection.
I understand PAT is about port translation & assigning different port numbers to connections. But PAT is also another name for NAT which is about translating private addresses to public. Here we have a private network going through a PAT router so I assume it is using private addresses - these private addresses need to be translated to public so should the answer not be the option below:
The router assigns a unique IP address from a pool of legally registered addresses for the duration of the connection.
Thanks
Q. What happens when computers on a private network attempt to connect to the internet through a Cisco router running PAT?
Correct answer: The router uses the same IP address but a different TCP source port number for each connection.
I understand PAT is about port translation & assigning different port numbers to connections. But PAT is also another name for NAT which is about translating private addresses to public. Here we have a private network going through a PAT router so I assume it is using private addresses - these private addresses need to be translated to public so should the answer not be the option below:
The router assigns a unique IP address from a pool of legally registered addresses for the duration of the connection.
Thanks