← Port Encyclopedia
3784

BFD

TCP
Network Medium Risk
Bidirectional Forwarding Detection — fast failure detection

🔍 How to Scan Port 3784

nmap -sV -p 3784 target
nmap -sV -sC --script=banner -p 3784 target
nc -zv target 3784

🛡️ Security Considerations

  • Scan port 3784 with nmap -sV to identify the exact service and version
  • If BFD is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit bfd to find known exploits
  • Monitor traffic on port 3784 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related Network Ports

Port 67
DHCP-Server
Port 68
DHCP-Client
Port 161
SNMP
Port 162
SNMP-Trap
Port 179
BGP
Port 199
SMUX
Port 201
AppleTalk
Port 264
BGMP
Port 427
SLP
Port 520
RIP
Port 521
RIPng
Port 524
NCP

📍 Nearby Ports

Port 3780
Nexpose
📚 Learn Network Scanning — Free Course
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