PROLiNK MH8241 - Manual (Page 84)

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Type (2) : Multi-DMZ
several DMZ Hosts
if you own several legal IPs, you can assign which legal IP correspond to
which IP on your LAN. This assignment will let most protocol to access the
assigned IP on the LAN.
DMZ HOST
Type (3) : Public DMZ
Public IP Mapping
This Router provide “Public IP Mapping” function, with this function, can let
you map legal IP between ROUTER WAN & LAN interface. This application will be
very useful to let you connect GAME Server or VOIP gateway inside the LAN,
because most GAME SERVER or VOIP gateway need legal IP address to operation