int bufferIndex ) {
        int start = bufferIndex;

        dialectIndex         = readInt2( buffer, bufferIndex ); bufferIndex += 2;
        if( dialectIndex > 10 ) {
            return bufferIndex - start;
        }
        server.securityMode  = buffer[bufferIndex++] & 0xFF;
        server.security      = server.securityMode & 0x01;

    }


    @Override
    public boolean isValid ( CIFSContext ctx, SmbNegotiationRequest req ) {
        if ( getDialectIndex() > 10 ) {
            return false;
        }

        if ( ( this.server.scapabilities & SmbConstants.CAP_EXTENDED_SECURITY ) != SmbConstants.CAP_EXTENDED_SECURITY