ZyXEL 2WG Guía Del Usuario
Chapter 4 Tutorial
ZyWALL 2WG User’s Guide
112
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The one-to-one NAT address mapping rules are for both incoming and
outgoing connections. The ZyWALL forwards traffic that is initiated from either
the LAN or the WAN to the destination IP address.
outgoing connections. The ZyWALL forwards traffic that is initiated from either
the LAN or the WAN to the destination IP address.
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The many-to-one or many-to-many NAT address mapping rules are for
outgoing connections only. That means only traffic initiated from the LAN or
returned packets are allowed to go through the ZyWALL.
outgoing connections only. That means only traffic initiated from the LAN or
returned packets are allowed to go through the ZyWALL.
In this example, you create two one-to-one rules to map the internal web server (192.168.1.12)
and mail server (192.168.1.13) to different static public IP addresses. The many-to-one rule
maps a public IP address (1.2.3.4, that is, the ZyWALL’s WAN 1 IP address) to outgoing LAN
traffic. It allows other local computers on the same subnet as the ZyWALL’s LAN IP address
to use this IP address to access the Internet.
and mail server (192.168.1.13) to different static public IP addresses. The many-to-one rule
maps a public IP address (1.2.3.4, that is, the ZyWALL’s WAN 1 IP address) to outgoing LAN
traffic. It allows other local computers on the same subnet as the ZyWALL’s LAN IP address
to use this IP address to access the Internet.
Figure 51 Tutorial Example: Mapping Multiple Public IP Addresses to Inside Servers
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The ZyWALL applies the rules in the order that you specify. You should put any
one-to-one rules before a many-to-one rule.
one-to-one rules before a many-to-one rule.
1 Click ADVANCED > NAT.
2 Enable NAT and select Full Feature for the WAN 1 interface as you have multiple
2 Enable NAT and select Full Feature for the WAN 1 interface as you have multiple
public IP addresses to map to private IP addresses. Click Apply.