An Internet Protocol (IP) address is a logical network-layer identifier assigned to a device to enable addressing and the routing of packets across multiple interconnected networks. Rather than identifying a permanent physical hardware interface or pinpointing an individual's exact physical location, an IP address typically specifies a device's network or regional presence.

IP Address

A port number is a numerical identifier used to distinguish a specific program, application, or service running on a networked device. When combined with an IP address—which locates the device itself—the port number directs incoming data to the precise destination software, such as web servers listening on port 80 for HTTP or port 443 for HTTPS.

Port Number

University of Michigan - Ann Arbor

Ch.2 Addressing and Name Resolution - Network Architecture and Packet Flow: Inside Modern Communication Systems @ University of Michigan - Ann Arbor

MAC and IP Addressing Systems - Network Architecture and Packet Flow: Inside Modern Communication Systems @ University of Michigan - Ann Arbor

Port Numbers and Service Identification - Network Architecture and Packet Flow: Inside Modern Communication Systems @ University of Michigan - Ann Arbor

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