IP Address

Different nodes on the same IP network are identified by their IP address. For example, each network interface on the computer on which you are reading this text will have a different IP address, as will every remote interface on the network to which your computer is connected.

There are two IP address formats in common use. Currently the huge majority of remote addresses use the IPv4 format, which is a 32-bit number, but is most often written as four separate octets (8-bit numbers) separated by a dot. For example "192.168.0.32".

See also Static IP Address and DHCP.

Useful links:

• TCP/IP Networking Basics
• FreeRTOS+TCP networking tutorial

Other networking basics pages:

• Ethernet Networking and Addressing
• MTU - Maximum Transmission Unit
• IP Networking
• IP Network Addressing
• ARP - Address Resolution Protocol
• Subnets / Netmasks
• Gateways and Routers
• UDP Networking
• TCP Networking
• MSS - Maximum Segment Size
• Port Numbers
• Sockets
• Binding
• Clients and Servers
• Static IP Addresses
• DHCP - Dynamic Host Control Protocol
• Name Resolution
• DNS - Domain Name Service
• LLMNR - Link-local Multicast Name Resolution
• NBNS - NetBIOS Name Service
• Bytes Order and Endian