User`s manual

DVG-5121SP User’s Manual
D-Link Corporation
12
3-2. VoIP Telephone Adapter in a NAT network
The VoIP telephone adapter uses a virtual IP address and the IP sharing function of other systems to connect
to the Internet.
Setting Action
LAN IP address of IP sharing Please avoid using the IP addresses 192.168.1.1-192.168.1.254 (You may
need to change the settings for IP sharing or change the LAN Port IP
address.)
VoIP Telephone Adapter IP Settings Set as static IP address, and assign the LAN IP address for IP sharing to the
default VoIP Telephone Adapter.
If the WAN setting uses a static IP address, then the NAT IP
address is set as the public IP address for IP sharing.
NAT /STUN Settings
Enable
If the WAN setting uses a dynamic IP address, then it has to
comply with the DDNS settings. When using NAT, you must
enter the URL (Uniform Resource Locator) that is registered to
the DDNS server.
The WAN setting uses a
static IP address.
Disable the DDNS settings DDNS Settings
The WAN setting uses a
dynamic IP address.
Enable the DDNS settings: enter the registered
URL (Uniform Resource Locator) into the
network settings -> under NAT