ZyXEL Communications P-660HN-F1A, User Manual

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Chapter 9 Network Address Translation (NAT)
P-660HN-F1A User’s Guide
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Ordering your rules is important because the P-660HN-F1A applies the rules in the
order that you specify. When a rule matches the current packet, the P-660HN-F1A
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 P-660HN-F1A’s address mapping settings, click Network > NAT
> Address Mapping to open the following screen.
Figure 69 Network > NAT > Address Mapping
The following table describes the fields in this screen.
Table 47 Network > NAT > Address Mapping
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
One-to-one and Server mapping types.
Global Start
IP This is the starting Inside Global IP Address (IGA). Enter 0.0.0.0 here if
you have a dynamic IP address from your ISP. You can only do this for
Many-to-One and Server mapping types.
Global End IP This is the ending Inside Global IP Address (IGA). This field is N/A for
One-to-one, Many-to-One and Server mapping types.