Internet TCP port 68 is primarily used by the Dynamic Host Configuration Protocol (DHCP) for client-side communication. DHCP is a network management protocol used on Internet Protocol (IP) networks, where a DHCP server dynamically assigns an IP address and other network configuration parameters to each device on the network, so they can communicate with other IP networks. Examples of software that use this protocol include network routers and switches, as well as server operating systems like Microsoft Windows Server and Linux distributions.
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