NSFNET Interior Gateway Protocol
This page provides IP protocol information on the NSFNET Interior Gateway Protocol (NSFNET-IGP) detected by the Netify DPI engine. Please see the IP protocol catalog for information on other IP protocols.
NSFNET-IGP is the interior gateway routing protocol used within NSFNET, the U.S. National Science Foundation's backbone network, an early Internet predecessor.
IP Protocol Details
- Name
- NSFNET Interior Gateway Protocol
- Abbreviation
- NSFNET-IGP
- Status
- Inactive
- IANA Number
- 85
- IANA Keyword
- NSFNET-IGP
- Network Policy
- Drop
- Reference
- NSFNET Interior Gateway Protocol
IP Protocol Status - Inactive
NSFNET-IGP was used during the NSFNET era of the late 1980s, and is historical, as NSFNET itself was decommissioned in 1995.
IP Protocol Network Policy
IP protocol #85 - NSFNET Interior 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.