Prestige 153/153X WAN Bridge/Routers
3.5Single 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).
Figure 3-4 illustrates a typical Single User Account topology.
192.168.1.3
192.168.1.3
192.168.1.3
192.168.1.3
Ethernet LAN
Private Network IP Addresses
Assigned by User
IP Address
Assigned by ISP
192.168.1.1 192.68.135.5
Modem / ISDN TA | INTERNET |
Modem | |
ISDN TA |
|
Prestige 153/153X
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.
Internet Access |
