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
netsc-dev	155	12.2	Network services	Built-in	As needed	NetSC-Dev provides secure API access to development-stage smart card services.
sqlsrv	156	12.2	Data bases	Built-in	As needed	SQLSRV is Microsoft's SQL Server protocol for encrypted client-server database communication.
knet-cmp	157	12.2	Remote control	Built-in	As needed	related to Kerberos network management.
pcmail-srv	158	12.2	E-Mail	Built-in	As needed	PCMail-Srv supports an early LAN-based email protocol suite for PC-based messaging.
nss-routing	159	12.2	Network services	Built-in	As needed	NSS-Routing handles secure routing and message delivery over NSS-managed sessions.
sgmp-traps	160	12.2	Debugging and measurement	Built-in	As needed	SGMP-Traps is the trap notification protocol for the Simple Gateway Monitoring Protocol (SGMP), used in legacy network devices.
snmp	161	12.2	Debugging and measurement	Built-in	As needed	SNMP (Simple Network Management Protocol) enables monitoring and management of networked devices.
snmptrap	162	12.2	Debugging and measurement	Built-in	As needed	SNMPTrap delivers unsolicited notifications (traps) from SNMP-managed devices to management systems.
cmip-man	163	12.2	Application servers	Built-in	As needed	CMIP-MAN is part of the Common Management Information Protocol, used in network device management.
cmip-agent	164	12.2	Application servers	Built-in	As needed	CMIP-Agent provides management data from devices using the Common Management Information Protocol.
xns-courier	165	12.2	Application servers	Built-in	As needed	XNS-Courier is a transport protocol from the Xerox Network Systems suite, used in early networking environments.
s-net	166	12.2	Network services	Built-in	As needed	S-NET protocol transmits real-time control data in fieldbus and industrial automation.
namp	167	12.2	Network services	Built-in	As needed	Node Access Management Protocol authenticates device-level access in automation.
rsvd	168	12.2	Network services	Built-in	As needed	Remote Storage Volume Daemon manages access and sync for virtual storage pools.
send	169	12.2	Network services	Built-in	As needed	Secure Neighbor Discovery extension provides signed ICMPv6 messages for address validation.
print-srv	170	12.2	Printing	Built-in	As needed	A print server service used to manage print queues and jobs on a network.
multiplex	171	12.2	Network services	Built-in	As needed	Multiplexes multiple application sessions over a single secure connection.
cl/1	172	12.2	Network services	Built-in	As needed	A protocol for CL/1 (Command Line 1), managing command line operations.
xyplex-mux	173	12.2	Network services	Built-in	As needed	Multiplexer protocol for terminal servers and concentrators by Xyplex.
mailq	174	12.2	E-Mail	Built-in	As needed	MailQ protocol checks the mail delivery queue and manages retry logic securely.

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