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Port 6315 (scup, scup-disc)

IANA assigns port 6315 to scup, scup-disc: Sensor Control Unit Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
scup TCP Sensor Control Unit Protocol Sven Kopacz -
scup-disc UDP Sensor Control Unit Protocol Discovery Protocol Sven Kopacz -

Registry dates for this port: registered 2010-09-01.

Check what is listening on port 6315

Linux: is anything listening on TCP 6315?
sudo ss -tlnp 'sport = :6315'
Linux: UDP 6315
sudo ss -ulnp 'sport = :6315'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6315
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6315 '
Windows (Command Prompt)
netstat -ano | findstr :6315
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6315 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6315
From Windows
Test-NetConnection HOST -Port 6315
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 6315

Block port 6315 in the firewall

ufw
sudo ufw deny 6315/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6315 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6315 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6315' -Direction Inbound -Protocol TCP -LocalPort 6315 -Action Block
ufw
sudo ufw deny 6315/udp
iptables
sudo iptables -A INPUT -p udp --dport 6315 -j DROP
nftables
sudo nft add rule inet filter input udp dport 6315 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 6315' -Direction Inbound -Protocol UDP -LocalPort 6315 -Action Block

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6301bmc-ctd-ldap, bmc_ctd_ldap6306ufmp6316abb-escp6317nav-data-cmd, nav-data

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