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Prestige 1100 Internet Access Router
Internet Access 3-9
If you do not define any server, SUA offers the additional benefit of firewall protection. If no server is
defined, all incoming inquiries will be filtered out by your Prestige and thus preventing intruders from
probing your network.
Your Prestige accomplishes this address sharing by translating the internal LAN IP addresses to a single
address that is globally unique on the Internet. For more information on IP address translation, refer to
RFC 1631, The IP Network Address Translator (NAT).
3.6.1 Advantages of SUA
In summary:
l SUA is a cost-effective solution for small offices with less than 20 hosts to access the Internet or other
remote TCP/IP networks.
l SUA supports servers to be accessible to the outside world.
l SUA can provide firewall protection if you do not specify any server. All incoming inquiries will be
filtered out by your Prestige 1100.
l UDP and TCP datagrams can be routed. In addition, partial ICMP, including echo (ping) and trace
route, is supported.
3.6.2 Single User Account Configuration
The steps for configuring your Prestige for Single User Account are identical to the conventional Internet
access (See configuration instructions in Table 3-4) with the exception that you need to fill in two extra
fields in Menu 4 - Internet Access Setup, as shown in the following figure. SUA here is applied solely to
the output interface and is valid only for LAN -- WAN connections and not for connections between LANs.
Figure 3-5 Menu 4 - Internet Access Setup for Single User Account
Menu 4 - Internet Access Setup
ISP's Name= ?
My Login=
My Password= ********
Single User Account= Yes
My IP Addr=
Press Enter to Confirm or ESC to Cancel
SUA