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// Other services

Port 13822: DSMCC Channel Change Protocol

Port 13822 is assigned by IANA to dsmcc-ccp (DSMCC Channel Change Protocol).

13822

How dsmcc-ccp works

Other services
client:13822dsmcc-ccpresponse client:13822dsmcc-ccpresponse

The client sends a request to port 13822 and the dsmcc-ccp service answers.

Transport
TCP · 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 13822 dangerous?

We have no specific security note for port 13822. 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 13822

ServicePortTransportDescriptionReferenceUpdated
dsmcc-ccp 13822 TCP, UDP DSMCC Channel Change Protocol ISO/IEC 13818-6 MPEG-2 DSM-CC -

// source: IANA service name and port number registry

03 Check it

Which program uses port 13822, and is it reachable?

Linux

sudo ss -ltnup 'sport = :13822'      # process listening on 13822
sudo lsof -nP -i :13822

macOS

sudo lsof -nP -i :13822

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 13822 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 13822
netstat -ano | findstr :13822

From another machine

nmap -p 13822 -sV <host>
sudo nmap -sU -p 13822 <host>
nc -zv <host> 13822

Block it in the firewall

sudo ufw deny 13822/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 13822" -Direction Inbound -LocalPort 13822 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 13822 used for?

Port 13822 is assigned by IANA to dsmcc-ccp (DSMCC Channel Change Protocol).

Is port 13822 TCP or UDP?

Port 13822 is registered for TCP and UDP.

Is it safe to open port 13822?

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 13822 is open?

On Linux run "ss -ltnup 'sport = :13822'", on macOS "lsof -nP -i :13822", and on Windows "netstat -ano | findstr :13822" to see the local process. From another machine, "nmap -p 13822 <host>" shows whether it is reachable.

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