ZyXEL Communications P-334WT Support Notes page 16

Service Type.......Currently, there are two authentication types that Road Runner supports,
TAS and RR-Manager.
Server IP.............The Prestige will find the Road Runner server IP if this field is blank, otherwise
enter the authentication server IP address if you know it.
My Login Name...Enter the login name given to you by your ISP
My Password.......Enter the password associated with the login name
WAN IP Address
otherwise, select Static.
IP Address & Subnet Mask & Gateway IP
gateway IP when Static Assignment is selected above.
6. How do I make VPN client x work through my Prestige?
The only VPN known for certain to work through the Prestige is Microsoft PPTP.
7. What is Multi-NAT?
NAT (Network Address Translation-NAT RFC 1631) is the translation of an Internet Protocol address
used within one network to a different IP address known within another network. One network is
designated the inside network and the other is the outside. Typically, a company maps its local inside
network addresses to one or more global outside IP addresses and "unmaps" the global IP addresses on
incoming packets back into local IP addresses. The IP addresses for the NAT can be either fixed or
dynamically assigned by the ISP. In addition, you can designate servers, e.g., a web server and a telnet
server, on your local network and make them accessible to the outside world. If you do not define any
servers, NAT offers the additional benefit of firewall protection. In such case, all incoming connections
to your network will be filtered out by the Prestige, thus preventing intruders from probing your
network.
The SUA feature that the Prestige supports previously operates by mapping the private IP addresses to a
global IP address. It is only one subset of the NAT. The Prestige with ZyNOS V3.00 supports the most
of the features of the NAT based on RFC 1631, and we call this feature as 'Multi-NAT'. For more
information on IP address translation, please refer to RFC 1631, The IP Network Address Translator
(NAT).
8. When do I need Multi-NAT?
Make local server accessible from outside Internet
When NAT is enabled the local computers are not accessible from outside. You can use Multi-NAT to
make an internal server accessible from outside.
Support Non-NAT Friendly Applications
Choose the correct one for your local ISP.
Assignment...If the ISP did not assign you an explicit IP, select Dynamic,
Address...Enter the IP address, subnet mask &
RR-