DTLS 1.2 in RFC 6347 recommends that the DTLS implementation expose to the application layer the effective application data MTU given the record/ciphersuite overhead. The openssl function to do this is DTLS_get_data_mtu which is not currently part of the this API.
I do see API for the application to hint to openssl what the underlayer network PMTU is.
DTLS 1.2 in RFC 6347 recommends that the DTLS implementation expose to the application layer the effective application data MTU given the record/ciphersuite overhead. The openssl function to do this is DTLS_get_data_mtu which is not currently part of the this API. I do see API for the application to hint to openssl what the underlayer network PMTU is.