What is an ARP Table?

[johnnywop]

...ARP Table???

[Kip Patterson]

All Ethernet networks tranfer data in packets that are addressed to a specific MAC address. (There are also broadcasts, fairly rare). When the layer 3 protocol in use is TCP/IP, there has to be a mechanism for relating the IP address to the MAC address. That's what the ARP table is - two columns, one with the MAC and one with the matching IP address.

Kip Patterson