Network Voice Protocol
This page provides IP protocol information on the Network Voice Protocol (NVP-II) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
NVP-II is Network Voice Protocol version 2, an early real-time protocol developed for packetized voice communication over the ARPANET research network.
IP Protocol Details
- Name
- Network Voice Protocol
- Abbreviation
- NVP-II
- Status
- Inactive
- IANA Number
- 11
- IANA Keyword
- NVP-II
- Network Policy
- Drop
- Reference
- Network Voice Protocol
IP Protocol Status - Inactive
NVP-II was a 1970s ARPANET experiment that pioneered real-time voice over IP, but became obsolete when modern VoIP standardizations shifted entirely to UDP.
IP Protocol Network Policy
IP protocol #11 - Network Voice 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.