Will ICE negotiations between peers behind two symmetric NAT's result in requiring two TURN servers?
问题 I read RFC6577 and RFC8445 but I feel like there is a bit of a disconnect between how TURN can be used versus how ICE actually utilizes the relay candidates . The TURN RFC describes the use of one single TURN server to ferry data between a client and a peer. The transport address on the TURN server accepts data flow from a client via TURN messages, whereas the relayed transport address accepts data flow from peer(s) via UDP. This sounds great - one TURN server and bidirectional data flow.