Network address translation

Network Address Translation is where a request from a private internal IP address is translated to an external public IP address, hiding the internal network from external attack. See Figure 16:

Figure 16: NAT

A NAT could be set up to hide a R&D network where new products are designed. Remember, a competitor may try to steal your new ideas and get them to market before you. A NAT could be set up on a firewall or a NAT server.

Get CompTIA Security+ Certification Guide now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.