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The following table describes the labels in this screen.
Table 17 WAN > NAT > Port Trigger
LABEL
Port Trigger Rules (Max. Limit : 32)
#
Name
Incoming Port
End Port
Trigger Port
End Port
Add
Delete
Apply
Cancel
9.5.3 Passthrough Screen
ALG Overview
Application Layer Gateway (ALG) allows VPN traffic to operate properly through the NBG6604's NAT.
The ALG feature is only needed for traffic that goes through the NBG6604's NAT.
To change your NBG6604's VPN pass-through settings, click WAN > NAT > Passthrough. The screen
appears as shown.
Figure 34 WAN > NAT > Passthrough
Chapter 9 WAN
DESCRIPTION
This is the rule index number (read-only).
Type a unique name (up to 15 characters) for identification purposes. All characters are
permitted - including spaces.
Incoming is a port (or a range of ports) that a server on the WAN uses when it sends out a
particular service. The NBG6604 forwards the traffic with this port (or range of ports) to the
client computer on the LAN that requested the service.
Type a port number or the starting port number in a range of port numbers.
Type a port number or the ending port number in a range of port numbers.
The trigger port is a port (or a range of ports) that causes (or triggers) the NBG6604 to record
the IP address of the LAN computer that sent the traffic to a server on the WAN.
Type a port number or the starting port number in a range of port numbers.
Type a port number or the ending port number in a range of port numbers.
Click
to add the rule in the port trigger summary table.
Click
to remove a rule.
Click Apply to save your changes back to the NBG6604.
Click Cancel to begin configuring this screen afresh.
NBG6604 User's Guide
60
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