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 |
|---|---|---|---|---|---|---|
| fcp | 510 | 12.2 | Network services | Built-in | As needed | A protocol for FCP (Fibre Channel Protocol), managing Fibre Channel communication. |
| passgo | 511 | 12.2 | Network services | Built-in | As needed | PassGo authentication service protocol for secure login and access control sync. |
| biff | 512 | 12.2 | Built-in | As needed | Biff notifies users of new mail arrival on UNIX systems, often over port 512. | |
| exec | 512 | 12.2 | Remote control | Built-in | As needed | Remote command execution service. |
| login | 513 | 12.2 | Remote control | Built-in | As needed | Generic remote authentication service. |
| who | 513 | 12.2 | Debugging and measurement | Built-in | As needed | WHO protocol returns a list of logged-in users on remote systems, similar to UNIX 'who'. |
| shell | 514 | 12.2 | Remote control | Built-in | As needed | Generic remote command-line shell access. |
| syslog | 514 | 12.2 | Debugging and measurement | Built-in | As needed | Syslog is a standard protocol for sending system logs and events to centralized log servers. |
| printer | 515 | 12.2 | Printing | Built-in | As needed | Generic service for managing print queues and printer jobs. |
| videotex | 516 | 12.2 | Video, pictures | Built-in | As needed | Videotex is an early standard for interactive TV and online content delivery over telecommunications networks. |
| talk | 517 | 12.2 | Instant messengers | Built-in | As needed | Talk protocol supports terminal-based chat between Unix systems, with optional encryption. |
| ntalk | 518 | 12.2 | Instant messengers | Built-in | As needed | Ntalk is a legacy terminal-based real-time chat protocol over networked Unix systems. |
| utime | 519 | 12.2 | Debugging and measurement | Built-in | As needed | UTime protocol provides unicast time synchronization similar to SNTP with optional authentication. |
| efs | 520 | 12.2 | Network services | Built-in | As needed | A protocol for EFS (Extended File System), extending file system access over networks. |
| router | 520 | 12.2 | Network services | Built-in | As needed | Router protocol generic telemetry for routing systems, table updates, and peer sync. |
| ripng | 521 | 12.2 | Network services | Built-in | As needed | Routing Information Protocol next generation (RIPng) for IPv6-based routing updates. |
| ulp | 522 | 12.2 | Network services | Built-in | As needed | Unlicensed LTE Protocol supports control sync in private wireless deployments. |
| ibm-db2 | 523 | 12.2 | Application servers | Built-in | As needed | IBM-DB2 protocol handles secure communication between clients and IBM DB2 databases. |
| ncp | 524 | 12.2 | Network services | Built-in | As needed | NetWare Core Protocol used for file, print, and directory services in Novell networks. |
| timed | 525 | 12.2 | Debugging and measurement | Built-in | As needed | Timed protocol synchronizes clocks in Berkeley Unix environments. |
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