P314 Broadband Sharing Gateway with 4-Port Switch

Chapter 6

SUA Server Setup

This chapter introduces SUA and helps you set up multiple servers behind SUA.

6.1Single User Account (SUA)

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.

Your Prestige accomplishes address sharing by translating the internal LAN IP addresses to a single address that is globally unique on the Internet. The SUA feature allows you to have the same benefits as having multiple legal addresses, but allows you to have one legal IP address and many local LAN IP addresses that can be used in other domains also, thus conserving the number of global IP addresses.

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.

The IP address for the SUA can be either fixed or dynamically assigned. In addition, you can designate servers, e.g., a web server, on your local network in the client side and make them accessible to outside world.

Figure 6-1 An Example of Single User Account Topology

SUA offers the additional benefit of firewall protection. All incoming inquiries will be filtered out by your Prestige and thus preventing intruders from probing your network.

SUA Server Setup

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