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Port 8805 (pfcp)

IANA assigns port 8805 to pfcp: Destination Port number for PFCP.

Registered (user) port, 1024-49151 UDP

Port 8805 is normally used over UDP; the checker tests TCP only, so a "filtered" result does not mean the UDP service is down.

IANA assignment

Service nameProtoDescriptionAssigneeReference
pfcp UDP Destination Port number for PFCP Kimmo Kymalainen -

Registry dates for this port: registered 2017-05-08.

Check what is listening on port 8805

Linux: UDP 8805
sudo ss -ulnp 'sport = :8805'
Linux / macOS: which process owns the port
sudo lsof -nP -i :8805
Windows (Command Prompt)
netstat -ano | findstr :8805
Windows (PowerShell)
Get-NetUDPEndpoint -LocalPort 8805

Test it from outside

UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 8805

Block port 8805 in the firewall

ufw
sudo ufw deny 8805/udp
iptables
sudo iptables -A INPUT -p udp --dport 8805 -j DROP
nftables
sudo nft add rule inet filter input udp dport 8805 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 8805' -Direction Inbound -Protocol UDP -LocalPort 8805 -Action Block

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