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 |