User manual

Enable Uncheck to temporarily disable this rule.
Private Address Enter the private address to change.
Public Address Enter the public address, typically a WAN interface
alias.
Public Interface Select the interface on which the public address
resides, this is typically Internet.
Note
When adding a rule, you may either use Predefined addresses that have been added
under Definitions, or click New to manually enter an address.
Masquerading
Masquerading is a form of source network address translation (NAT). It translates many
addresses (such as private LAN IP addresses) into a single address (such as the
external IP address).
Masquerading has the following advantages:
All machines on the local network can access the Internet using a single ISP
account.
Only one public IP address is used and is shared by all machines on the local
network. Each machine has its own private IP address.
The firewall remains active when masquerading is disabled.
Note
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Firewall