ZyXEL Communications ZyXEL ZyWALL P1, User Manual

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ZyWALL P1 User’s Guide
180 Chapter 11 Network Address Translation (NAT)
11.2.1 SUA (Single User Account) Versus NAT
Your ZyWALL supports SUA (Single User Account) which is a ZyNOS implementation of a
subset of NAT that supports two types of mapping,
Many-to-One and Server .
11.3 Configuring NAT Overview
Click NAT to open the NAT Overview screen shown next.
Figure 77 NAT Overview
The following table describes the labels in this screen.
Table 64 NAT Overview
LABEL DESCRIPTION
NAT Setup
Max. Concurrent
Sessions
This read-only field displays the highest number of NAT sessions that the ZyWALL
will permit at one time.
Max. Concurrent
Sessions Per
Host
Use this field to set the highest number of NAT sessions that the ZyWALL will permit
a host to have at one time.
Enable NAT Select this check box to turn on the NAT feature for the WAN port. Clear this check
box to turn off the NAT feature for the WAN port.
Note: Your ZyWALL supports SUA which is a subset of NAT that
supports two types of mapping, Many-to-One and Server (refer
to
Section 11.1.4 on page 178 for more information).
Port Forwarding
Rules
The bar displays how many of the ZyWALL's possible port forwarding rules are
configured. The first number shows how many port forwarding rules are configured
on the ZyWALL. The second number shows the maximum number of port forwarding
rules that can be configured on the ZyWALL.
Port Triggering
Rules
The bar displays how many of the ZyWALL's possible trigger port rules are
configured. The first number shows how many trigger port rules are configured on
the ZyWALL. The second number shows the maximum number of trigger port rules
that can be configured on the ZyWALL.