The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

NAR Network Address Retention

A simplified IP addressing capability that eliminates the need to establish an intermediate IP address between a router and a firewall. Sometimes called Proxy-ARP. This feature allows the implementation of a firewall into an existing network without having to establish a new IP address scheme.