User manual

50 | Chapter 4. Security Settings
N150 Wireless ADSL2+ Modem Router DGN1000 User Manual
Figure 27. Allow inbound video conferencing
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
described in Dynamic DNS on page 73 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 are required to access the local server using the computer’s local LAN
address (192.168.0.11 in the example shown in Figure 27, Allow inbound video
conferencing). Attempts by local computers to access the server using the external WAN
IP address fail.