Port 5354

Port 5354 is often used by the multicast DNS (mDNS) protocol, which is used for name resolution in local networks. It allows devices to discover and communicate with each other without the need for a centralized DNS server. Some applications that use mDNS include Apple’s Bonjour service, Chromecast, and some smart home devices.

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 5354
tcp
mdnsresponder
Multicast DNS Responder
REGISTERED PORT
Port 5354
udp
mdnsresponder
Multicast DNS Responder
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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