Port 4175 (bccp)

IANA assigns port 4175 to bccp: Brocade Cluster Communication Protocol.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

bccp TCP Brocade Cluster Communication Protocol Norival Figueira -

Registry dates for this port: registered 2010-04-07.

Linux: is anything listening on TCP 4175?

sudo ss -tlnp 'sport = :4175'

Linux / macOS: which process owns the port

sudo lsof -nP -i :4175

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':4175 '

Windows (Command Prompt)

netstat -ano | findstr :4175

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4175 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 4175

From Windows

Test-NetConnection HOST -Port 4175

ufw

sudo ufw deny 4175/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 4175 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 4175 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 4175' -Direction Inbound -Protocol TCP -LocalPort 4175 -Action Block

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