Take a minute to review these key points about IP addressing:

• IP addresses are 32-bit addresses used by the IP protocol to specify source and destination hosts.

• To simply readability, IP addresses are conventionally seperated into four bytes and written in dotted quad notation: four integer numbers ranging from 0 to 255, seperated by periods.

• Every network interface is assigned a unique IP address.

If you're uncomfortable with any of these concepts, review the IP Address and Address Classes pages in the Topical Core.