// 3- Add RELAY2 protocol to the already connected channel.
RELAY2 relayToInject = createRELAY2(SFO);
// Util.setField(Util.getField(relayToInject.getClass(), "local_addr"), relayToInject, a.getAddress());
a.getProtocolStack().insertProtocolAtTop(relayToInject);
relayToInject.down(new Event(Event.SET_LOCAL_ADDRESS, a.getAddress()));
relayToInject.setProtocolStack(a.getProtocolStack());
relayToInject.configure();
relayToInject.handleView(a.getView());
// 4- Check RELAY2 presence.