VMTP - IP Protocol
This page provides IP protocol information on the VMTP IP protocol (VMTP) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
VMTP is the Versatile Message Transaction Protocol, an experimental transport protocol designed for efficient request/response transactions.
IP Protocol Details
- Name
- VMTP
- Abbreviation
- VMTP
- Status
- Inactive
- IANA Number
- 81
- IANA Keyword
- VMTP
- Network Policy
- Drop
- Reference
- VMTP
IP Protocol Status - Inactive
VMTP was developed at Stanford in the mid-to-late 1980s as transaction-protocol research, and is historical and was never widely deployed.
IP Protocol Network Policy
IP protocol #81 - VMTP - 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.