ZyXEL Communications 310 Action, Set Name, Set Name, Select Rule, Ordering Your Rules, User-DefinedAddress Mapping Sets, Figure 6-8Menu 15.1.1 — First Set

Prestige 310 Broadband Sharing Gateway

User-Defined Address Mapping Sets

Now let’s look at option 1 in menu 15.1. Enter 1 to bring up this menu. We’ll just look at the differences from the previous menu. Note the extra Action and Select Rule fields mean you can configure rules in this screen. Note also that the [?] in the Set Name field means that this is a required field and you must enter a name for the set. If the Set Name field is left blank, the entire set will be deleted.

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.
2
3.
4.
5.
6.
7.
8.
9.
10.
	Action= Edit		Select Rule=N/A

Press ENTER to Confirm or ESC to Cancel:

Figure 6-8 Menu 15.1.1 — First SetThe Type, Local and Global Start/End IPs are configured in menu 15.1.1.1(described later) and the values are displayed here.Ordering Your Rules

Ordering your rules is important because the Prestige applies the rules in the order that you specify. When a rule matches the current packet, the Prestige 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.

6-10 Network Address Translation (NAT)