HTTPfy

Port 15118 (v2g-secc)

IANA assigns port 15118 to v2g-secc: v2g Supply Equipment Communication Controller Discovery Protocol.

Registered (user) port, 1024-49151 UDP

Port 15118 is normally used over UDP; the checker tests TCP only, so a "filtered" result does not mean the UDP service is down.

IANA assignment

Service nameProtoDescriptionAssigneeReference
v2g-secc UDP v2g Supply Equipment Communication Controller Discovery Protocol Holger Lochner -

Registry dates for this port: registered 2011-04-06.

Check what is listening on port 15118

Linux: UDP 15118
sudo ss -ulnp 'sport = :15118'
Linux / macOS: which process owns the port
sudo lsof -nP -i :15118
Windows (Command Prompt)
netstat -ano | findstr :15118
Windows (PowerShell)
Get-NetUDPEndpoint -LocalPort 15118

Test it from outside

UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 15118

Block port 15118 in the firewall

ufw
sudo ufw deny 15118/udp
iptables
sudo iptables -A INPUT -p udp --dport 15118 -j DROP
nftables
sudo nft add rule inet filter input udp dport 15118 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 15118' -Direction Inbound -Protocol UDP -LocalPort 15118 -Action Block

Related ports

15000hydap15002onep-tls15345xpilot153633link

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