List of protocols
- Built-in protocols — updated along with the SSG software version. Installing a new version requires a DPI reboot, which causes traffic interruption.
If needed, they can be supplemented with up-to-date attributes from the VAS Cloud. This is only necessary for complex protocols, but the option is available for all. - Cloud protocols created by VAS Experts — are periodically updated from the VAS Cloud. This ensures that popular applications remain up-to-date as their behavior changes. Description
- Custom (user-defined) protocols — protocols created by users via the GUI using VAS Cloud tools. These have higher priority than those loaded from the VAS Cloud, and within them, IP:PORT takes precedence over IP and CIDR. It is possible to add a protocol based on IP, SNI, or AS. Guide.
- DSL protocols — protocols described in the DSL language and connected to DPI as a separate module, without reinstalling the software or causing traffic interruption. Unlike custom protocols, a DSL protocol is a finite state machine that analyzes the first N packets of a flow against defined conditions (ports, AS numbers, payload bytes, DSL expressions) and determines whether the flow matches the protocol.
DSL protocols are created by VAS Experts specialists upon client request to Technical Support.
| Protocol | ID | DPI version | Protocol group | Protocol type | Update | Description |
|---|---|---|---|---|---|---|
| dcp | 93 | 12.2 | Remote control | Built-in | As needed | Distributed Computing Protocol. |
| objcall | 94 | 12.2 | Application servers | Built-in | As needed | ObjCall is a remote procedure call protocol for object-based applications. |
| supdup | 95 | 12.2 | Remote control | Built-in | As needed | Old remote terminal protocol, similar to Telnet. |
| dixie | 96 | 12.2 | Data transfer | Built-in | As needed | Dixie protocol provides LDAP access over TCP in legacy directory service systems. |
| swift-rvf | 97 | 12.2 | Data transfer | Built-in | As needed | Swift-RVF protocol manages secure transaction routing in SWIFT messaging systems. |
| tacnews | 98 | 12.2 | Built-in | As needed | TacNews protocol supports tactical information distribution in simulation and strategy environments. | |
| metagram | 99 | 12.2 | Network services | Built-in | As needed | Metagram enables metadata sharing between distributed document and messaging systems. |
| hostname | 101 | 12.2 | Network services | Built-in | As needed | A protocol for hostname resolution or identification, a variant of DNS-like services. |
| iso-tsap | 102 | 12.2 | Network services | Built-in | As needed | A protocol for ISO TSAP (Transport Service Access Point), managing transport services. |
| gppitnp | 103 | 12.2 | P2P | Built-in | As needed | Used in General Packet Radio Service (GPRS) for internet telephony and network processing. |
| acr-nema | 104 | 12.2 | Data transfer | Built-in | As needed | ACR-NEMA is a medical imaging protocol that evolved into DICOM, supporting encrypted image transfers. |
| csnet-ns | 105 | 12.2 | Built-in | As needed | CSNET-NS was an early name resolution protocol for CSNET-based messaging systems. | |
| 3com-tsmux | 106 | 12.2 | Network services | Built-in | As needed | A protocol for 3Com TSMux (Transport Multiplexer), multiplexing transport data. |
| rtelnet | 107 | 12.2 | Remote control | Built-in | As needed | Secure Remote Telnet service. |
| snagas | 108 | 12.2 | Remote control | Built-in | As needed | SNA Gateway Access Server |
| pop2 | 109 | 12.2 | Built-in | As needed | POP2 is a deprecated email retrieval protocol replaced by POP3. | |
| pop3 | 110 | 12.2 | Built-in | As needed | POP3 (Post Office Protocol v3) allows secure email retrieval from mail servers. | |
| sunrpc | 111 | 12.2 | Remote control | Built-in | As needed | Sun Microsystems' Remote Procedure Call (RPC) system. |
| mcidas | 112 | 12.2 | Data transfer | Built-in | As needed | McIDAS is a protocol for accessing meteorological datasets, used in atmospheric science. |
| auth | 113 | 12.2 | Network services | Built-in | As needed | Generic Auth protocol manages identity, token, and session telemetry sync. |
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