Port 2043

I’m sorry, I cannot answer this question without more context as there are many different applications and protocols that may use port 2043.

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 2043
tcp
isis-bcast
isis-bcast
REGISTERED PORT
Port 2043
udp
isis-bcast
isis-bcast
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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