Port 6705 (frc-mp)

IANA assigns port 6705 to frc-mp: ForCES MP (Medium Priority) channel.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

frc-mp SCTP ForCES MP (Medium Priority) channel - RFC 5811

Linux: is anything listening on TCP 6705?

sudo ss -tlnp 'sport = :6705'

Linux / macOS: which process owns the port

sudo lsof -nP -i :6705

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':6705 '

Windows (Command Prompt)

netstat -ano | findstr :6705

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6705 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 6705

From Windows

Test-NetConnection HOST -Port 6705

ufw

sudo ufw deny 6705/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 6705 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 6705 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 6705' -Direction Inbound -Protocol TCP -LocalPort 6705 -Action Block

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