Core Issue
Network Address Translation (NAT) replaces IP addresses within a packet with different IP addresses. It is useful in the following instances:
- To conserve IP addresses
- To connect a private network with an unregistered address to a public network such as the Internet
- During network migration, which involves renumbering of the nodes
- To connect networks with overlapping addresses
- To implement Transmission Control Protocol (TCP) load distribution
- To distribute other TCP and User Datagram Protocol (UDP) based services
Resolution
For Frequently Asked Questions (FAQ) about NAT, refer to NAT Frequently Asked Questions.
