RTCPeerConnectionIceErrorEvent: port property

Baseline 2026

Newly available

Since April 2026, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The port property of the RTCPeerConnectionIceErrorEvent interface represents the port number over which communication with the STUN or TURN server is taking place.

This is null if the connection hasn't been established (address is null).

Value

A positive integer.

null if the connection hasn't been established (that is, if address is null).

This example creates a handler for icecandidateerror events, which creates human-readable messages describing the local network interface for the connection and the ICE server used to attempt the connection. It then calls a function to display those messages and the value of the event's errorText property.

pc.addEventListener("icecandidateerror", (event) => {
  const networkInfo = `[Local interface: ${event.address}:${event.port}]`;
  const iceServerInfo = `[ICE server: ${event.url}]`;

  showMessage(event.errorText, iceServerInfo, networkInfo);
});