Gateway-to-Gateway Protocol
This page provides IP protocol information on the Gateway-to-Gateway Protocol (GGP) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
GGP is an early exterior routing protocol used by ARPANET core gateways to exchange reachability information with each other in the network's original design.
IP Protocol Details
- Name
- Gateway-to-Gateway Protocol
- Abbreviation
- GGP
- Status
- Inactive
- IANA Number
- 3
- IANA Keyword
- GGP
- Network Policy
- Drop
- Reference
- Gateway-to-Gateway Protocol
IP Protocol Status - Inactive
GGP was documented in RFC 823 in 1982, and has long been obsolete, superseded first by EGP and later by BGP for inter-network routing.
IP Protocol Network Policy
IP protocol #3 - Gateway-to-Gateway 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.