Introduction to TCP/IP and routing : Introduction to IP : IP on different medias ("links") : IP and point-to-point links
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1.4.2. IP and point-to-point links

On other medias, such as telephone links, leased lines and Frame Relay, the link is said to be "point-to-point", in that there are only two peers involved in the communication over this link at any time.

Because of this, a point-to-point interface "knows" only of two addresses: itself, and the remote end.

No ARP mechanism is needed on such links, though ARP can be used in a special manner (see below) to "attach" distant hosts to local networks.


Introduction to TCP/IP and routing : Introduction to IP : IP on different medias ("links") : IP and point-to-point links
Previous: IP addressing <-> link level addressing
Next: Routing