Port 5353

Port 5353 is used for Multicast DNS (mDNS) service discovery on a local network. mDNS is used to discover and connect to devices such as printers, scanners, and other networked devices on the same local network. It is commonly used in Apple’s Bonjour protocol and is also supported by other devices and operating systems.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 5353
tcp
mdns
Multicast DNS
REGISTERED PORT
Port 5353
udp
mdns
Multicast DNS
REGISTERED PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
TCP UDP Ports
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