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 |
|---|---|---|---|---|---|---|
| dn6-nlm-aud | 195 | 12.2 | Network services | Built-in | As needed | A protocol for DNSv6 Network License Manager Audit, tracking license usage in IPv6 networks. |
| dn6-smm-red | 196 | 12.2 | Network services | Built-in | As needed | A protocol for DNSv6 System Management Module Redirect, managing IPv6 DNS traffic. |
| dls | 197 | 12.2 | Network services | Built-in | As needed | Data Link Switching protocol bridges SNA frames over IP networks. |
| dls-mon | 198 | 12.2 | Debugging and measurement | Built-in | As needed | DLS-Mon (Dynamic Load System Monitor) checks server loads and resource availability in encrypted environments. |
| smux | 199 | 12.2 | Network services | Built-in | As needed | SNMP Multiplex protocol allows multiple subagents to coexist within an SNMP agent framework. |
| src | 200 | 12.2 | Debugging and measurement | Built-in | As needed | SRC (Session Resource Controller) manages network session tracking and usage reporting. |
| at-rtmp | 201 | 12.2 | Instant messengers | Built-in | As needed | AT-RTMP enables Real-Time Messaging Protocol transport in Apple video streaming workflows. |
| at-nbp | 202 | 12.2 | Instant messengers | Built-in | As needed | AT-NBP (Name Binding Protocol) is a legacy AppleTalk protocol for service name discovery. |
| at-echo | 204 | 12.2 | Instant messengers | Built-in | As needed | AT-Echo is a legacy AppleTalk diagnostic protocol used to test reachability and latency. |
| at-zis | 206 | 12.2 | Instant messengers | Built-in | As needed | AT-ZIS is a zero-initiation sync used in Apple collaboration environments for state resolution. |
| qmtp | 209 | 12.2 | Built-in | As needed | QMTP (Quick Mail Transfer Protocol) is a fast, secure email transfer protocol for large-volume mail systems. | |
| z39.50 | 210 | 12.2 | Application servers | Built-in | As needed | Z39.50 is a standard protocol for searching and retrieving information from remote databases, used in libraries. |
| 914c/g | 211 | 12.2 | Remote control | Built-in | As needed | Texas Instruments 914C/G Terminal |
| anet | 212 | 12.2 | Network services | Built-in | As needed | A protocol for ANet (Access Network), providing general access network services. |
| ipx | 213 | 12.2 | Network services | Built-in | As needed | A protocol for IPX (Internetwork Packet Exchange), a Novell networking protocol. |
| vmpwscs | 214 | 12.2 | Virtualization | Built-in | As needed | VM PWSCS (IANA official) |
| softpc | 215 | 12.2 | Network services | Built-in | As needed | SoftPC remote desktop and virtualization protocol used in early terminal emulators. |
| CAIlic | 216 | 12.2 | Application servers | Built-in | As needed | CAILIC is a license manager for terminal emulation and legacy system access tools. |
| dbase | 217 | 12.2 | Printing | Built-in | As needed | A database printing service for managing print jobs and output from a database system. |
| mpp | 218 | 12.2 | Built-in | As needed | MPP (Multi-Purpose Protocol) is used in gaming and media systems for secure state sync and chat. |
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