- Answer only the networks that need the service (no open resolvers, relays or reflectors).
- UDP services can be abused for DDoS amplification: rate-limit or block them at the edge.
- Disable legacy test services that have no use in production.
Port 15118: v2g Supply Equipment Communication Controller Discovery Protocol
Port 15118 is assigned by IANA to v2g-secc (v2g Supply Equipment Communication Controller Discovery Protocol).
15118
How v2g-secc works
Network servicesThe client sends a request to port 15118 and the v2g-secc service answers.
- Transport
- UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Network services
Is port 15118 dangerous?
We have no specific security note for port 15118. Its risk depends on the program actually listening on it. General advice for network services services:
IANA registry entries for port 15118
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| v2g-secc | 15118 | UDP | v2g Supply Equipment Communication Controller Discovery Protocol | - | 2011-04-06 |
| - | 15118 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 15118, and is it reachable?
Linux
sudo ss -ltnup 'sport = :15118' # process listening on 15118
sudo lsof -nP -i :15118macOS
sudo lsof -nP -i :15118
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 15118 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 15118 netstat -ano | findstr :15118
From another machine
nmap -p 15118 -sV <host> sudo nmap -sU -p 15118 <host> nc -zv <host> 15118
Block it in the firewall
sudo ufw deny 15118/udp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 15118" -Direction Inbound -LocalPort 15118 -Protocol UDP -Action Block # Windows
What is port 15118 used for?
Port 15118 is assigned by IANA to v2g-secc (v2g Supply Equipment Communication Controller Discovery Protocol).
Is port 15118 TCP or UDP?
Port 15118 is registered for UDP.
Is it safe to open port 15118?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Answer only the networks that need the service (no open resolvers, relays or reflectors).
How do I check if port 15118 is open?
On Linux run "ss -ltnup 'sport = :15118'", on macOS "lsof -nP -i :15118", and on Windows "netstat -ano | findstr :15118" to see the local process. From another machine, "nmap -p 15118 <host>" shows whether it is reachable.
Other network services ports
:53 DNS tcp · udp · moderate risk :135 MS RPC tcp · udp · high risk :123 NTP udp · tcp · moderate risk :67 DHCP server udp · tcp · moderate risk :111 rpcbind tcp · udp · high risk :9100 Raw printing (JetDirect) tcp · udp · high risk :631 IPP / CUPS tcp · udp · high risk :5353 mDNS udp · tcp · moderate risk