The DTLS branch called bind_socket.recvfrom(1) before creating the
context. On UDP that removes the entire first datagram (the client's
ClientHello) from the queue and discards everything past the first
byte, so wolfSSL_accept() had nothing to consume and the handshake
only recovered after the client's retransmit timer. The captured
from_addr was also reused for every iteration of the -i loop.
Replace it with a peek_peer_address() helper that uses MSG_PEEK to read
the source address without consuming the datagram, and move the peek
into the accept loop so the address is refreshed per connection.
Kareem
Juliusz Sosinowicz