ZyXEL Communications VSG-1200 V2, User Manual

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VSG-1200 V2 User’s Guide
Chapter 8 NAT Pool 78
8.3 NAT Pool Setup
Note: You only need to set the NAT address pool if the remote VPN server(s) allows
only one connection per source IP address.
You need to acquire additional public IP address(es) from your ISP to create
NAT pool(s).
To set the NAT address pool, click System Settings and NAT Pool in the navigation panel. A
screen displays as shown next.
Figure 29 System Settings: NAT Pool
The following table describes the labels in this screen.
Table 15 NAT Example: One-to-One and Many-to-One
SUBSCRIBER ORIGINAL SOURCE IP TRANSLATED SOURCE IP
S1 10.59.1.2 211.21.21.2
S2 10.59.1.3 211.21.21.2
S3 10.59.1.4 211.21.21.3
Table 16 System Settings: NAT Pool
LABEL DESCRIPTION
Disable Select this option to deactivate this feature. Subscribers are not be able to establish
multiple connections simultaneously to the same VPN server (that has the single-
connection-per-source limitation).
Enable Select this option to perform address translation on the WAN to allow subscribers to
establish simultaneous connections to the same VPN server (that has the single-
connection-per-source limitation).
You must then configure the address pool for VPN connections.