Internet Stream Protocol
This page provides IP protocol information on the Internet Stream Protocol (ST) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
ST identifies the Internet Stream Protocol, an experimental connection-oriented protocol designed to reserve resources for real-time voice and video traffic.
IP Protocol Details
- Name
- Internet Stream Protocol
- Abbreviation
- ST
- Status
- Inactive
- IANA Number
- 5
- IANA Keyword
- ST
- Network Policy
- Drop
- Reference
- Internet Stream Protocol
IP Protocol Status - Inactive
ST was defined by RFC 1190 (1990) and revised as ST2+ in RFC 1819 (1995), and was an experimental effort ultimately abandoned in favor of RSVP.
IP Protocol Network Policy
IP protocol #5 - Internet Stream Protocol - is typically dropped by edge routers and firewalls. Advanced threat actors and malware families can use these non-standard IP protocol numbers for lateral movement (east-west communication) inside internal networks.