Angus Gratton 89f9ee9d7c tests/multi_net: Update DTLS multi-net test. ...

The original version of this test had to exchange a 1 byte UDP packet
before the DTLS handshake. This is no longer needed due to MSG_PEEK
support.

The test also doesn't work with HelloVerify enabled, as the first
connection attempt always fails with an
MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED result. Anticipate this by listening
for the client twice on the server side.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>

2025-07-23 15:47:16 +10:00

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