CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 5247: CAPWAP Data Protocol

Port 5247 is assigned by IANA to capwap-data (CAPWAP Data Protocol).

5247

How capwap-data works

Other services
client:5247capwap-dataresponse client:5247capwap-dataresponse

The client sends a request to port 5247 and the capwap-data service answers.

Transport
UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 5247 dangerous?

We have no specific security note for port 5247. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 5247

ServicePortTransportDescriptionReferenceUpdated
capwap-data 5247 UDP CAPWAP Data Protocol RFC 5415 -
-5247-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5247, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5247'      # process listening on 5247
sudo lsof -nP -i :5247

macOS

sudo lsof -nP -i :5247

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5247 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5247
netstat -ano | findstr :5247

From another machine

nmap -p 5247 -sV <host>
sudo nmap -sU -p 5247 <host>
nc -zv <host> 5247

Block it in the firewall

sudo ufw deny 5247/udp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5247" -Direction Inbound -LocalPort 5247 -Protocol UDP -Action Block  # Windows
04 FAQ
What is port 5247 used for?

Port 5247 is assigned by IANA to capwap-data (CAPWAP Data Protocol).

Is port 5247 TCP or UDP?

Port 5247 is registered for UDP.

Is it safe to open port 5247?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 5247 is open?

On Linux run "ss -ltnup 'sport = :5247'", on macOS "lsof -nP -i :5247", and on Windows "netstat -ano | findstr :5247" to see the local process. From another machine, "nmap -p 5247 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

Latest vulnerability news

All news