The IP address of the DMZ host at LAN side.
If it is enabled, the DHCP requests from local PCs will forward to the DHCP server runs on WAN side. To have this function working properly, please disable the NAT to run on router mode only, disable the DHCP server on the LAN port, and make sure the routing table has the correct routing entry.
The DHCP server runs on WAN side.
Here is the global setting for IGMP Proxy. If it is enabled, then the enabled IGMP Proxy on WAN PVCs will be working. Otherwise, no WAN PVC can have IGMP Proxy working on it.
If it is enabled, the PPP session will
be automatically established when there is a packet wants to go out the WAN.
When the 
is enabled, only one PC is able to access the Internet, and the DHCP server will duplicate the WAN IP address from the ISP to the local client PC. Only the PC with the WAN IP address can access the Internet.
The Reset to Factory Default page allows the user the reset the modem to original factory default configuration (factory.reg).