Transport Client Converter Server |SYN, MPC | | |[->Server:port] | SYN, MPC | |------------------>|--------------------->| |<------------------|<---------------------| |SYN+ACK, MPC | SYN+ACK, MPC | |[MPC supported] | | |------------------>|--------------------->| | ACK, MPC | ACK, MPC | | ... | ... |