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3 ordering your rules, Figure 359 menu 15.1.1: first set, Table 232 fields in menu 15.1.1 – ZyXEL Communications 5 Series User Manual

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ZyWALL 5/35/70 Series User’s Guide

616

Chapter 42 Network Address Translation (NAT)

Figure 359 Menu 15.1.1: First Set

Note: The Type, Local and Global Start/End IPs are configured in menu 15.1.1.1

(described later) and the values are displayed here.

42.2.1.3 Ordering Your Rules

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 as old rule 5 becomes rule
4, old rule 6 becomes rule 5 and old rule 7 becomes rule 6.

Menu 15.1.1 - Address Mapping Rules

Set Name= NAT_SET

Idx Local Start IP Local End IP Global Start IP Global End IP Type

--- --------------- --------------- --------------- --------------- --

1. 0.0.0.0 255.255.255.255 0.0.0.0 M-1

2. 0.0.0.0 Server

3.

4.

5.

6.

7.

8.

9.

10.

Action= None Select Rule= N/A

Press ENTER to Confirm or ESC to Cancel:

Table 232 Fields in Menu 15.1.1

FIELD

DESCRIPTION

Set Name

Enter a name for this set of rules. This is a required field. If this field is left blank, the entire
set will be deleted.

Action

The default is Edit. Edit means you want to edit a selected rule (see following field). Insert
Before
means to insert a rule before the rule selected. The rules after the selected rule will
then be moved down by one rule. Delete means to delete the selected rule and then all the
rules after the selected one will be advanced one rule. None disables the Select Rule
item.

Select
Rule

When you choose Edit, Insert Before or Delete in the previous field the cursor jumps to
this field to allow you to select the rule to apply the action in question.