Garmin HM210DP/DI manual MAC address, NAT rule

Glossary

Private IP addresses are also LAN IP addresses, but are considered "illegal" IP addresses to the Internet. They are private to an enterprise while still permitting full network layer connectivity between all hosts inside an enterprise as well as all public hosts of different enterprises.

ISP

Short for Internet Service Provider, a company that provides access to the Internet.

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LAN

Short for Local Area Network, which is a computer network limited to the immediate area, usually the same building or floor of a building. A WAN, on the other hand, is an outside connection to another network or the Internet.

LED

Abbreviation of Light Emitting Diode, a type of control lamp on devices that indicates the status of a device.

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MAC address

Short for Media Access Control address. The permanent hardware address of a device, assigned by its manufacturer. MAC addresses are expressed as six pairs of characters.

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NAT

Short for Network Address Translation. A service performed by many routers that translate your network’s publicly known IP address into a private IP address for each computer on your LAN. Only your router and your LAN know these addresses; the outside world sees only the public IP address when talking to a computer on your LAN.

NAT rule

A defined method for translating between public and private IP addresses on your LAN.

NIC

Short for Network Interface Card, which is an expansion board you insert into a computer so the computer can be connected to a network. Most NICs are designed for a particular type of network, protocol, and media, although some can serve multiple networks.

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