848
GDOI
Medium RiskUDP — Security & VPN
Port Overview
Port Number
848
Service Name
GDOI
Transport Protocol
UDP
Category
Security & VPN
Security Risk
Medium
Port Range
Well-Known (0-1023)
What is Port 848?
Group Domain of Interpretation (GDOI), defined in RFC 6407, an IKE-based key management protocol for IPsec group VPNs (GET VPN). Used by Cisco GET VPN deployments.
UDP
Security & VPN
Security Considerations
Port 848 (GDOI) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.