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Port 5569 (rdmnet-ctrl, rdmnet-device)

IANA assigns port 5569 to rdmnet-ctrl, rdmnet-device: PLASA E1.33, Remote Device Management (RDM) controller status notifications.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
rdmnet-ctrl TCP PLASA E1.33, Remote Device Management (RDM) controller status notifications PLASA -
rdmnet-device UDP PLASA E1.33, Remote Device Management (RDM) messages PLASA -

Registry dates for this port: registered 2012-06-01.

Check what is listening on port 5569

Linux: is anything listening on TCP 5569?
sudo ss -tlnp 'sport = :5569'
Linux: UDP 5569
sudo ss -ulnp 'sport = :5569'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5569
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5569 '
Windows (Command Prompt)
netstat -ano | findstr :5569
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5569 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5569
From Windows
Test-NetConnection HOST -Port 5569
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5569

Block port 5569 in the firewall

ufw
sudo ufw deny 5569/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5569 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5569 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5569' -Direction Inbound -Protocol TCP -LocalPort 5569 -Action Block
ufw
sudo ufw deny 5569/udp
iptables
sudo iptables -A INPUT -p udp --dport 5569 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5569 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5569' -Direction Inbound -Protocol UDP -LocalPort 5569 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.