The Nat Address Mapping Screen - ZyXEL Communications 5 Series User Manual

Chapter 22 Network Address Translation (NAT)
Table 130 ADVANCED > NAT > NAT Overview (continued)
LABEL
Address
Mapping Rules
Port Forwarding
Rules
Port Triggering
Rules
Copy to WAN 2
(and Copy to
WAN 1)
Apply
Reset

22.3 The NAT Address Mapping Screen

Click ADVANCED > NAT > Address Mapping to open the following screen.
Use this screen to change your ZyWALL's address mapping settings. Not all fields are
available on all models.
Ordering your rules is important because the ZyWALL applies the rules in the order that you
specify. When a rule matches the current packet, the ZyWALL takes the corresponding action
and the remaining rules are ignored. If there are any empty rules before your new configured
rule, your configured rule will be pushed up by that number of empty rules. For example, if
you have already configured rules 1 to 6 in your current set and now you configure rule
number 9. In the set summary screen, the new rule will be rule 7, not 9. Now if you delete rule
4, rules 5 to 7 will be pushed up by 1 rule, so old rules 5, 6 and 7 become new rules 4, 5 and 6.
438
DESCRIPTION
Select SUA if you have just one public WAN IP address for your ZyWALL. This lets
the ZyWALL use its permanent, pre-defined NAT address mapping rules.
Select Full Feature if you have multiple public WAN IP addresses for your ZyWALL.
This lets the ZyWALL use the address mapping rules that you configure. This is the
equivalent of what used to be called full feature NAT or multi-NAT.
The bar displays how many of the ZyWALL's possible address mapping rules are
configured. The first number shows how many address mapping rules are
configured on the ZyWALL. The second number shows the maximum number of
address mapping rules that can be configured on the ZyWALL.
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.
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.
Click Copy to WAN 2 (or Copy to WAN 1) to duplicate this WAN interface's NAT
port forwarding or trigger port rules on the other WAN interface.
Note: Using the copy button overwrites the other WAN interface's
existing rules.
The copy button is best suited for initial NAT configuration where you have
configured NAT port forwarding or trigger port rules for one interface and want to
use similar rules for the other WAN interface. You can use the other NAT screens to
edit the NAT rules after you copy them from one WAN interface to the other.
Click Apply to save your changes back to the ZyWALL.
Click Reset to begin configuring this screen afresh.
ZyWALL 5/35/70 Series User's Guide