Considerations For Inbound Rules - NETGEAR DGN3500 User Manual

N300 Wireless Gigabit ADSL2+ Modem Router DGN3500
Log. You can select whether the traffic will be logged. The choices are:
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Never. No log entries will be made for this service.
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Always. Any traffic for this service type will be logged.
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Match. Traffic of this type that matches the settings and action will be logged.
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Not match. Traffic of this type that does not match the settings and action will be
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logged.
Inbound Rule Example: Allowing Video Conferencing
If you want to allow incoming video conferencing to be initiated from a restricted range of
outside IP addresses, such as from a branch office, you can create an inbound rule. In the
example shown in the following figure, CU-SeeMe connections are allowed only from a
specified range of external IP addresses. In this case, we have also specified logging of any
incoming CU-SeeMe requests that do not match the allowed settings.
Figure 19.

Considerations for Inbound Rules

If your external IP address is assigned dynamically by your ISP, the IP address might
•
change periodically as the DHCP lease expires. Consider using the Dynamic DNS screen
so that external users can always find your network.
If the IP address of the local server computer is assigned by DHCP, it might change when
•
the computer is rebooted. To avoid this, use the Reserved IP address feature in the LAN
IP Setup screen to keep the computer's IP address constant.
Local computers must access the local server using the computer's local LAN address
•
(192.168.0.11 in the example in the previous figure). Attempts by local computers to
access the server using the external WAN IP address will fail.
Protecting Your Network
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