Filter
Top Products
Prestige 623ME-T User’s Guide
NAT 5-1
Chapter 5
Network Address Translation (NAT)
This chapter discusses how to configure NAT on the Prestige.
5.1 NAT Overview
NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP address of a host in a
packet, for example, the source address of an outgoing packet, used within one network to a different IP
address known within another network.
5.2 Single User Account Server (SUA Server)
Typically, if there are multiple users on the LAN wanting to concurrently access the Internet, you will have
to lease a block of legal, or globally unique, IP addresses from the ISP.
The Single User Account (SUA) feature allows you to have the same benefits as having multiple legal
addresses, but only pay for one IP address, thus saving significantly on the subscription fees. (Check with
your ISP before you enable this feature).
Figure 5-1 Single User Account Topology
The Single User Account feature may also be used on connections to remote networks other than the ISP.
For example, this feature can be used to simplify the allocation of IP addresses when connecting branch
offices to the corporate network.