IP

IP Address

To see, write ifconfig.

An IP address consists of four bytes (32-bit total) and has a rigid hierarchical structure. Ex: 121.7.106.83

  • Each period separates the bytes which goes from 0 to 255

Hierarchical Address

An IP address is hierarchical because as we scan the address from left to right, we obtain more and more specific information about where the host is located in the Internet.

Justin showed me this command, which works sometimes

hostname -I

To see other devices, do arp -a

An Internet Protocol address (IP address) is a numerical label such as 192.0.2.1 that is connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: network interface identification and location addressing.

IPv4 vs IPv6?

  • IPv4 is composed of 32-bit address length and is the fourth version of the Internet Protocol (IP).
  • IPv6 is composed of 128-bit address length and is the latest updated version of the Internet Protocol (IP).

When is IPv6 ever used?

Source