PARC Universal Packet - IP Protocol
This page provides IP protocol information on the PARC Universal Packet IP protocol (PUP) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
PUP is PARC Universal Packet, Xerox's pioneering internetworking datagram format that influenced the design of later protocols including early TCP/IP work.
IP Protocol Details
- Name
- PARC Universal Packet
- Abbreviation
- PUP
- Status
- Inactive
- IANA Number
- 12
- IANA Keyword
- PUP
- Network Policy
- Drop
- Reference
- PARC Universal Packet
IP Protocol Status - Inactive
PUP was developed at Xerox PARC in the late 1970s, and is a historically influential but long-obsolete protocol with no modern deployment.
IP Protocol Network Policy
IP protocol #12 - PARC Universal Packet - 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.