Computer Protocol Heart Beat
This page provides IP protocol information on the Computer Protocol Heart Beat (CPHB) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
CPHB is Computer Protocol Heart Beat, a companion protocol to CPNX used to send periodic liveness signals between networked computer systems.
IP Protocol Details
- Name
- Computer Protocol Heart Beat
- Abbreviation
- CPHB
- Status
- Inactive
- IANA Number
- 73
- IANA Keyword
- CPHB
- Network Policy
- Drop
- Reference
- Computer Protocol Heart Beat
IP Protocol Status - Inactive
CPHB is a little-documented 1980s-era protocol, and is historical, with no known modern deployment.
IP Protocol Network Policy
IP protocol #73 - Computer Protocol Heart Beat - 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.