Chapter 10 Network Address Translation (NAT) Screens
10.6Address Mapping
"The Address Mapping screen is available only when you select Full Feature in the NAT > General screen.
Ordering your rules is important because the ZyXEL Device applies the rules in the order that you specify. When a rule matches the current packet, the ZyXEL Device 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.
To change your ZyXEL Device’s address mapping settings, click Network > NAT > Address Mapping to open the following screen.
Figure 95 Address Mapping Rules
The following table describes the fields in this screen.
Table 56 Address Mapping Rules
LABEL | DESCRIPTION |
|
|
# | This is the rule index number. |
|
|
Local Start IP | This is the starting Inside Local IP Address (ILA). Local IP addresses are N/A for |
| Server port mapping. |
Local End IP | This is the end Inside Local IP Address (ILA). If the rule is for all local IP addresses, |
| then this field displays 0.0.0.0 as the Local Start IP address and 255.255.255.255 as |
| the Local End IP address. This field is N/A for |
| types. |
| 163 |
|
|