* @param options
*/
protected final void stripUnwantedOptions( DhcpMessage request,
OptionsField options )
{
final ParameterRequestList prl = ( ParameterRequestList ) request
.getOptions().get( ParameterRequestList.class );
if ( null != prl )
{
final byte[] list = prl.getData();
for ( final Iterator i = options.iterator(); i.hasNext(); )
{
final DhcpOption o = ( DhcpOption ) i.next();
for ( int j = 0; j < list.length; j++ )
if ( list[j] == o.getTag() )