MicroNet Technology IP TELEPHONY GATEWAY SP5052 - Manual (Page 14)

14
Dynamic IP Address – usr/config$ ifaddr –ipsharing 1
Note:
With Dynamic WAN IP Address, a Gatekeeper with a valid IP address for VoIP
FXO gateway is a must. In other word, it is not workable in Peer-to-Peer mode
while dynamic WAN IP Address.
IP Sharing device must have a function to do IP/Port mapping. Some is
named as DMZ, some is named as virtual server. The VoIP messages from
WAN have to completely pass forward to the LAN. It is said if the VoIP FXO
gateway is assigned a virtual fixed IP Address such as 192.168.1.5, IP sharing
device must forward the VoIP messages to 192.168.1.5.