IEF-G9010 Series User Manual
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3.
Configure the following settings:
a.
Enable NAT Rule:
Use the toggle to enable or disable the NAT rule.
b.
NAT Type:
Select
Port Forward
from the drop-down list.
c.
Rule Name:
Enter a name for the rule.
d.
(Optional)
Description:
Enter a description for the rule.
e.
Incoming Interface:
Select the interface that will process incoming traffic for this rule from the
drop-down list.
f.
Protocol:
Select the protocol that will be processed by the rule.
g.
Original IP:
Enter the port range to be translated. When the device receives packets on the
specified [Incoming Interface], if the destination IP of the packet matches the [Original IP], it will be
changed to the [Mapped IP] IP address and port range.
h.
Mapped IP:
Enter the IP address and port range the [Original IP] will be mapped to. This is usually
a private IP address within your local network.
i.
(Optional)
Enable NAT Loopback:
Use the toggle to enable or disable NAT loopback.
4.
Click
Ok
to close the Create Rule window.
5.
On the Rules overview page, click
Save
to save your settings.
Application-layer Gateways (ALG)
An application-layer gateway (ALG) allows client applications with server applications through server ports
that are opened to client applications. These ports are usually dynamically assigned in the application
protocol. An ALG understands application protocols, recognizes application-specific commands, and helps
open device ports to enable communications. Without an ALG, client applications like FTP would be unable
to transfer files when the FTP client is located within a NAT network.
Use the [ALG Settings] tab to configure the following settings:
•
Enable or disable the FTP, SIP, and H.323 ALG
