What type of ports are designated as 49152 through 65535?

The range of ports designated as 49152 through 65535 is commonly referred to as dynamic allocation ports, often also known as private or ephemeral ports. These ports are not assigned to any specific service or protocol by the Internet Assigned Numbers Authority (IANA), allowing them to be used by applications for temporary or dynamic conversations.

When a client software application needs to establish a connection to a server, it will typically use a dynamic port from this range as its source port. This allows multiple applications or clients to communicate over the network without risking conflicts, as they can use the available dynamic ports for their individual sessions.

In contrast, public ports are generally well-known ports that are officially assigned by IANA for specific services (like HTTP on port 80 or FTP on port 21). Static ports would imply ports that are consistently used for a service without change, and connection ports is not a standard term used in networking. This makes dynamic allocation ports the correct classification for the port range in question.