Verizon ASK-NCQ1338E User Manual page 80

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6.
Enter the Protocol, Source Ports
needed.
7.
Click Apply
Apply to save changes.
5.0g/
PORT TRIGGERING
Port triggering can be described as dynamic port forwarding. By
setting port triggering rules, inbound traffic arrives at a specific
network host using ports that are different than those used for
outbound traffic. The outbound traffic triggers the ports where the
inbound traffic is directed.
For example, a web server is accessed using UDP protocol on port
2222. The web server then responds by connecting the user using
UDP on port 3333, when a web session is initiated.
In this case, port triggering must be used since it conflicts with the
following default firewall settings:
Firewall blocks inbound traffic by default.
Server replies to your Gateway IP, and the connection is not sent
back to the host since it is not part of a session.
To resolve the conflict, a port triggering entry must be defined,
which allows inbound traffic on UDP port 3333 only after a network
host generated traffic to UDP port 2222. This results in your
Gateway accepting the inbound traffic from the web server and
sending it back to the network host which originated the outgoing
traffic to UDP port 2222.
http://setup.verizon.com/businessinternetgateway |
Protocol, Source Ports and Destination Ports
05 / CONFIGURING
ADVANCED SETTINGS
Destination Ports, as
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