← Port Encyclopedia
646
LDP
TCP
Network Medium Risk
Label Distribution Protocol — MPLS label distribution

🔍 How to Scan Port 646

nmap -sV -p 646 target
nmap -sV -sC --script=banner -p 646 target
nc -zv target 646

🛡️ Security Considerations

  • Scan port 646 with nmap -sV to identify the exact service and version
  • If LDP is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit ldp to find known exploits
  • Monitor traffic on port 646 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 641
Port-641
Port 642
Port-642
Port 643
Port-643
Port 644
Port-644
Port 645
Port-645
Port 647
Port-647
Port 648
Port-648
Port 649
Port-649
Port 650
Port-650
Port 651
Port-651
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