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Port 11320 (imip-channels)

IANA assigns port 11320 to imip-channels: IMIP Channels Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
imip-channels TCP IMIP Channels Port Len Zuvela 2 -
imip-channels UDP IMIP Channels Port Len Zuvela 2 -

Check what is listening on port 11320

Linux: is anything listening on TCP 11320?
sudo ss -tlnp 'sport = :11320'
Linux: UDP 11320
sudo ss -ulnp 'sport = :11320'
Linux / macOS: which process owns the port
sudo lsof -nP -i :11320
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':11320 '
Windows (Command Prompt)
netstat -ano | findstr :11320
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 11320 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 11320
From Windows
Test-NetConnection HOST -Port 11320
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 11320

Block port 11320 in the firewall

ufw
sudo ufw deny 11320/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 11320 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 11320 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 11320' -Direction Inbound -Protocol TCP -LocalPort 11320 -Action Block
ufw
sudo ufw deny 11320/udp
iptables
sudo iptables -A INPUT -p udp --dport 11320 -j DROP
nftables
sudo nft add rule inet filter input udp dport 11320 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 11320' -Direction Inbound -Protocol UDP -LocalPort 11320 -Action Block

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