D-Link DI-1162 - Manual (Page 85)

DI-1162 Remote Access Router
Configuration and Management 75
Basically, when a packet comes into the router from a WAN port and is
destined for a host on the LAN, the router will use information defined
here to immediately send the packet to the host rather than send out an
ARP request to find the host’s MAC address.
The parameters are described as follows:
•
IP Address – this is the IP address that causes the router to reply
with the MAC Address upon receiving an ARP request.
•
MAC Address – this is the physical address, of the host, that is the
authorized owner of the IP address.
•
State – this toggles enable, disable.
NAT Configuration
Network Address Translation (NAT) is a routing protocol that allows
your network to become a private network that is isolated from, yet
connected to the Internet. It does this by changing the IP address of
packets from a global IP address usable on the Internet to a local IP
address usable on your private network (but not on the Internet) and
vice-versa.