Netgear DG834G DG834G Original Reference Manual - Page 68

Inbound Rule Example: Allowing Videoconferencing, Considerations for Inbound Rules,

Page 68 highlights

Reference Manual for the 54 Mbps Wireless ADSL Firewall Router DG834G • Log You can select whether the traffic will be logged. The choices are: • Never - no log entries will be made for this service. • Always - any traffic for this service type will be logged. • Match - traffic of this type which matches the parameters and action will be logged. • Not match - traffic of this type which does not match the parameters and action will be logged. Inbound Rule Example: Allowing Videoconferencing If you want to allow incoming videoconferencing 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 Figure 5-6, 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 parameters. Figure 5-6: Rule example: Videoconference from Restricted Addresses Considerations for Inbound Rules • If your external IP address is assigned dynamically by your ISP, the IP address may change periodically as the DHCP lease expires. Consider using the Dynamic DNS feature in the Advanced menus so that external users can always find your network. • If the IP address of the local server computer is assigned by DHCP, it may change when the computer is rebooted. To avoid this, use the Reserved IP address feature in the LAN IP menu to keep the computer's IP address constant. 5-8 Protecting Your Network

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Reference Manual for the 54 Mbps Wireless ADSL Firewall Router DG834G
5-8
Protecting Your Network
Log
You can select whether the traffic will be logged. The choices are:
Never — no log entries will be made for this service.
Always — any traffic for this service type will be logged.
Match — traffic of this type which matches the parameters and action will be logged.
Not match — traffic of this type which does not match the parameters and action will
be logged.
Inbound Rule Example: Allowing Videoconferencing
If you want to allow incoming videoconferencing 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
Figure 5-6
, 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 parameters.
Figure 5-6:
Rule example: Videoconference from Restricted Addresses
Considerations for Inbound Rules
If your external IP address is assigned dynamically by your ISP, the IP address may change
periodically as the DHCP lease expires. Consider using the Dynamic DNS feature in the
Advanced menus so that external users can always find your network.
If the IP address of the local server computer is assigned by DHCP, it may change when the
computer is rebooted. To avoid this, use the Reserved IP address feature in the LAN IP menu
to keep the computer’s IP address constant.