Netgear DM111PSPv2 – ADSL2+ Ethernet Modem User Manual

Create an inbound rule to allow incoming video conferencing to be initiated from a restricted 
range of outside IP addresses, such as from a branch office. In the following figure, 
CU-SeeMe connections are allowed from a specified range of external IP addresses only. In 
this case, logging of any incoming CU-SeeMe requests that do not match the allowed 
settings is always allowed.

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 

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 
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 

). Attempts by local computers to access the server using the external WAN 

IP address fail.

Outbound Rules (Service Blocking)

The modem lets you block computers on your local network from using certain Internet 
services. This is called service blocking or port filtering. You can define an outbound rule to 
block Internet access from a local computer based on local computer, Internet site being 
contacted, time of day, and type of service being requested.