\def MBEDTLS_SSL_DTLS_ANTI_REPLAY Enable support for the anti-replay mechanism in DTLS. Requires: MBEDTLS_SSL_TLS_C MBEDTLS_SSL_PROTO_DTLS \warning Disabling this is often a security risk! See mbedtls_ssl_conf_dtls_anti_replay() for details. Comment this to disable anti-replay in DTLS.