STUN Server | Alternate Server

The alternate server represents an alternate transport address identifying a different STUN server that the STUN client should try.

The STUN Server can be configured to send an alternate server as a response to a binding request, to configure this behaviour, just access to STUNOptions.BindingAttributes.AlternateServer property and configure here the values required.

TsgcSTUNServer oSTUN = new TsgcSTUNServer();
oSTUN.Port = 3478;
oSTUN.STUNOptions.BindingAttributes.AlternateServer.Enabled := true;
oSTUN.STUNOptions.BindingAttributes.AlternateServer.IPAddress := "80.54.54.1";
oSTUN.STUNOptions.BindingAttributes.AlternateServer.Port := 3478;
oSTUN.Active = true;

When the client receives the Alternate Server response attribute, it will try to send a request binding to the new server.