8 bytes is the minimum size of a udp datagram.
what is the minimum size of a udp datagram?
8 bytes
Na
Na
using either method, send or channel binding, the turn server receives the data from the client and relays it to the peer using udp datagrams, which contain as their source address the "allocated relayed transport address". the peer receives the data and responds, again using a udp datagram as the transport protocol, sending the udp datagram to the relay address at the turn server.





























the turn server receives the peer udp datagram, checks the permissions and if they are valid, forwards it to the client.
traversal using relays around nat