Test Your Internet Connection; Advanced Configuration; Network Address Translation Overview; Configuring Sua Server - ZyXEL Communications P-792H Compact Manual

4.4 Test Your Internet Connection

Launch your web browser and navigate to www.zyxel.com. Internet access is just the beginning.
Refer to the User's Guide for more detailed information on the complete range of Prestige features.
If you cannot access the Internet, open the web configurator again to confirm that the Internet
settings you configured in the Wizard Setup are correct.

5 Advanced Configuration

This section shows how to configure some of the advanced features of the Prestige.

5.1 Network Address Translation Overview

NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP address of a host
in a packet. For example, the source address of an outgoing packet, used within one network is
changed to a different IP address known within another network.
If you have a single public IP address then select SUA Only in the NAT-Mode screen (see Figure
15). If you have multiple public IP addresses then you may use full feature mapping types (see the
User's Guide for more details).
NAT supports five types of IP/port mapping. They are:
1. One-to-One: One-to-one mode maps one local IP address to one global IP address. Note
that port numbers do not change for One-to-one NAT mapping type.
2. Many-to-One: Many-to-One mode maps multiple local IP addresses to one global IP
address.
3. Many-to-Many Overload: Many-to-Many Overload mode maps multiple local IP
addresses to shared global IP addresses.
4. Many-to-Many No Overload: Many-to-Many No Overload mode maps each local IP
address to unique global IP addresses.
5. Server: This type allows you to specify inside servers of different services behind the NAT
to be accessible to the outside world.

5.2 Configuring SUA Server

An SUA server set is a list of inside (behind NAT on the LAN) servers, for example, web or FTP,
that you can make visible to the outside world even though SUA makes your whole inside network
appear as a single computer to the outside world.
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