| Protocol | ID | DPI version | Protocol group | Protocol type | Update | Description |
|---|
| irtrans | 21000 | 12.2 | Unknown | Built-in | As needed | irtrans operates on port 21000 and facilitates IR command transmission and learning for IRTrans home automation devices. |
| rdm-tfs | 21553 | 12.2 | Unknown | Built-in | As needed | rdm-tfs operates on port 21553 and supports RDM TFS (Remote Device Management Thin File System) for device file management. |
| dfserver | 21554 | 12.2 | Unknown | Built-in | As needed | dfserver operates on port 21554 and supports data feed server operations in distributed data platforms. |
| vofr-gateway | 21590 | 12.2 | Unknown | Built-in | As needed | vofr-gateway operates on port 21590 and provides gateway services for Voice over Frame Relay (VoFR) communications in legacy telecom networks. |
| tvpm | 21800 | 12.2 | Unknown | Built-in | As needed | tvpm operates on port 21800 and enables TV program management and distribution across digital networks. |
| webphone | 21845 | 12.2 | Voice over IP | Built-in | As needed | A web-based phone service that allows users to make and receive calls through a browser. |
| netspeak-is | 21846 | 12.2 | Unknown | Built-in | As needed | netspeak-is operates on port 21846 and enables Internet Signaling communication in NetSpeak VoIP platforms. |
| netspeak-cs | 21847 | 12.2 | Unknown | Built-in | As needed | netspeak-cs operates on port 21847 and supports Call Signaling services in NetSpeak systems. |
| netspeak-acd | 21848 | 12.2 | Unknown | Built-in | As needed | netspeak-acd operates on port 21848 and provides Automatic Call Distribution communication in NetSpeak environments. |
| netspeak-cps | 21849 | 12.2 | Unknown | Built-in | As needed | netspeak-cps operates on port 21849 and enables centralized provisioning and session control in NetSpeak infrastructure. |
| snapenetio | 22000 | 12.2 | Unknown | Built-in | As needed | snapenetio operates on port 22000 and supports Snapenet I/O for input/output operations in Snapenet systems. |
| optocontrol | 22001 | 12.2 | Unknown | Built-in | As needed | optocontrol operates on port 22001 and supports communication and control for OptoControl automation systems. |
| optohost002 | 22002 | 12.2 | Unknown | Built-in | As needed | optohost002 operates on port 22002 and enables communication with OptoHost node 2 in industrial control systems. |
| optohost003 | 22003 | 12.2 | Unknown | Built-in | As needed | optohost003 operates on port 22003 and provides services for OptoHost industrial control system node 3. |
| optohost004 | 22004 | 12.2 | Data transfer | Built-in | As needed | OptoHost004 protocol supports remote diagnostics and control in secure industrial automation. |
| dcap | 22125 | 12.2 | Unknown | Built-in | As needed | dcap operates on port 22125 and supports DCAP (Data Copy Access Protocol) for data transfer in distributed systems. |
| gsidcap | 22128 | 12.2 | Unknown | Built-in | As needed | gsidcap operates on port 22128 and enables access to secure digital capture systems in GSID environments. |
| wnn6 | 22273 | 12.2 | Unknown | Built-in | As needed | wnn6 operates on port 22273 and is used by the Wnn6 Japanese input system for communication between client and language processing services. |
| cis | 22305 | 12.2 | Unknown | Built-in | As needed | CIS protocol used in Critical Infrastructure Security or utility monitoring platforms. |
| cis-secure | 22343 | 12.2 | Unknown | Built-in | As needed | Secure variant of CIS protocol used in regulated infrastructure communications. |