← Port Encyclopedia
4500
IPsec-NAT
UDP
VPN
Medium Risk
IPsec NAT traversal — VPN through NAT
🔍 How to Scan Port 4500
nmap -sV -p 4500 target
nmap -sV -sC --script=banner -p 4500 target
nc -zv target 4500
🛡️ Security Considerations
- Scan port 4500 with
nmap -sVto identify the exact service and version - If IPsec-NAT is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit ipsec-natto find known exploits - Monitor traffic on port 4500 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation