All ports
Port854/UDP
dlepPort
854
Protocol
UDP
Category
Well-Known
Service
dlep
What is port 854?
Port 854/UDP is a Well-Known port, assigned by IANA for widely recognized services. It is associated with the dlep service.
Dynamic Link Exchange Protocol (DLEP)
Useful commands
nmapnmap -p 854 -sV example.comnetcatnc -zv example.com 854curlcurl -v http://example.com:854/telnettelnet example.com 854bash(echo > /dev/udp/example.com/854) 2>/dev/nullFirewall commands
UFWAllow
sudo ufw allow 854/udpDeny
sudo ufw deny 854/udpiptablesAllow
sudo iptables -A INPUT -p udp --dport 854 -j ACCEPTDeny
sudo iptables -D INPUT -p udp --dport 854 -j ACCEPTfirewalldAllow
sudo firewall-cmd --permanent --add-port=854/udpWindowsAllow
netsh advfirewall firewall add rule name="Open Port 854" dir=in action=allow protocol=UDP localport=854Security Risks
- Unauthorized access to the service
- Data exposure if the service is unauthenticated
- Outdated versions with vulnerabilities
- Incorrect service configuration
Frequently Asked Questions
What service runs on port 854/UDP?
Port 854/UDP is associated with the dlep service. Dynamic Link Exchange Protocol (DLEP)
Is it safe to expose port 854 to the Internet?
It depends on the service and configuration. Port 854 (dlep) is a Well-Known port. If you need to expose it, keep the service updated, use strong authentication, and configure a firewall. It's always recommended to restrict access by IP when possible.
How do I check if port 854 is open?
You can use nmap: `nmap -p 854 -sV example.com`, netcat: `nc -zv example.com 854`, or the bash command: `(echo > /dev/udp/example.com/854) 2>/dev/null && echo "Open" || echo "Closed"`.
How do I open or close port 854 on my firewall?
On Linux with UFW: `sudo ufw allow 854/udp` (open) or `sudo ufw deny 854/udp` (close). With iptables: `sudo iptables -A INPUT -p udp --dport 854 -j ACCEPT`. On Windows: `netsh advfirewall firewall add rule name="Open Port 854" dir=in action=allow protocol=UDP localport=854`.
What applications and services use port 854?
Port 854/UDP is used by the dlep service. Specific uses depend on the software and configuration. Check our related tools section for more information.