Trunk-2 Protocol
This page provides IP protocol information on the Trunk-2 Protocol (TRUNK-2) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
TRUNK-2 is a companion protocol to Trunk-1 used for trunk-line signaling in early experimental packet-switched network research.
IP Protocol Details
- Name
- Trunk-2 Protocol
- Abbreviation
- TRUNK-2
- Status
- Inactive
- IANA Number
- 24
- IANA Keyword
- TRUNK-2
- Network Policy
- Drop
- Reference
- Trunk-2 Protocol
IP Protocol Status - Inactive
TRUNK-2 is a little-documented early network protocol, and is historical, with no known current use.
IP Protocol Network Policy
IP protocol #24 - Trunk-2 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.