Port 3681 is typically used for UPnP (Universal Plug and Play) Internet Gateway Device (IGD) secure Internet communications. It is used to allow devices on a network to discover and communicate with each other, as well as to configure network settings automatically. This port is also used by some DVR (Digital Video Recorder) devices to allow remote viewing of surveillance footage over the internet.
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 3681 |
tcp |
bts-x73 |
BTS X73 Port |
REGISTERED PORT |
Port 3681 |
udp |
bts-x73 |
BTS X73 Port |
REGISTERED PORT |
UnOfficial
Unofficialy or sometimes with conflict, the same port may be used by different applications.
Port | Protocol (TCP/UDP) | Description |