ZyXEL P-1100 User Guide - Page 42

Single User Account

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Prestige 1100 Internet Access Router 3.6 Single User Account 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). Private Network IP Addresses Assigned by User 192.168.1.33 192.168.1.1 INTERNET 192.168.1.34 192.168.1.35 192.168.1.36 The SUA network appears as a single host on the Internet Leased Line (T1/E1) IP ADDRESS ASSIGNED BY ISP Figure 3-4 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. 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 and make them accessible to outside world. 3-8 Internet Access

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Prestige 1100 Internet Access Router
3-8
Internet Access
3.6
Single User Account
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).
INTERNET
Leased Line (T1/E1)
192.168.1.33
192.168.1.34
192.168.1.35
192.168.1.36
Private Network IP Addresses
Assigned by User
IP ADDRESS ASSIGNED
BY ISP
192.168.1.1
The SUA network appears as
a single host on the Internet
Figure 3-4 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.
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 and make them accessible to outside world.