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Port 43210 (shaperai, shaperai-disc)

IANA assigns port 43210 to shaperai, shaperai-disc: Shaper Automation Server Management.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
shaperai TCP Shaper Automation Server Management Shaper Automation -
shaperai-disc UDP Shaper Automation Server Management Discovery Shaper Automation -

Registry dates for this port: registered 2012-06-22.

Check what is listening on port 43210

Linux: is anything listening on TCP 43210?
sudo ss -tlnp 'sport = :43210'
Linux: UDP 43210
sudo ss -ulnp 'sport = :43210'
Linux / macOS: which process owns the port
sudo lsof -nP -i :43210
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':43210 '
Windows (Command Prompt)
netstat -ano | findstr :43210
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 43210 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 43210
From Windows
Test-NetConnection HOST -Port 43210
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 43210

Block port 43210 in the firewall

ufw
sudo ufw deny 43210/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 43210 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 43210 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 43210' -Direction Inbound -Protocol TCP -LocalPort 43210 -Action Block
ufw
sudo ufw deny 43210/udp
iptables
sudo iptables -A INPUT -p udp --dport 43210 -j DROP
nftables
sudo nft add rule inet filter input udp dport 43210 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 43210' -Direction Inbound -Protocol UDP -LocalPort 43210 -Action Block

Related ports

43190ip-provision43191noit-transport43438hmip-routing43439eq3-update, eq3-config

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.