private boolean isValidSeqAuth(final int seqAuth,
                                   final int src) {
        final Integer lastSeqAuth = mMeshNode.getSeqAuth(src);
        return lastSeqAuth == null || lastSeqAuth < seqAuth;
    }
Validates Sequence authentication value.

@param seqAuth Sequence authentication.
@param src     Source address.
mesh/src/main/java/no/nordicsemi/android/mesh/transport/LowerTransportLayer.java