Network Address Translation (Nat) Screens; The Nat Mode Screen; Configuring Address Mapping Rules - ZyXEL Communications P-2900-4HB User Manual

Chapter 6 Network Address Translation (NAT) Screens
NAT translates the destination address (the inside global address) back to the
inside local address before forwarding it to the original inside host.
Finding Out More
See Section 6.3 on page 63

6.2 The NAT Mode Screen

You must create a firewall rule in addition to setting up NAT, to allow traffic from
the WAN to be forwarded through the ZyXEL Device. Click Advanced Setup >
NAT to open the following screen.
Figure 17 Advanced Setup > NAT
The following table describes the labels in this screen.
Table 10 Advanced Setup > NAT
LABEL
None
Full Feature
Edit Details
Apply

6.2.1 Configuring Address Mapping Rules

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
60
for technical background information on NAT.
DESCRIPTION
Select this to disable NAT.
Select this to enable NAT.
Click this link to take you to a screen where you can configure public and
private IP mapping rules.
Click Apply to save your configuration.
P-2900-4HB User's Guide