$form->setBlockHint('hint-spoofmac', _('This field can be used to modify ("spoof") the MAC address of the network interface<br>Enter a MAC address in the following format: xx:xx:xx:xx:xx:xx or leave blank'));
//
$form->exitBlock();
$form->exitFieldSet();
$form->startFieldset('fset_dns', _('DNS Servers'));
// dns servers
$form->startBlock('rw_dnsserver');
$form->setLabel(null, _('IP Addresses'), 'dnsserver', 'class=labelcol');
$form->startBlock('rw_dnsserver', 'right');
$form->startWrapper('rw_dnsopts', 'controls');
$form->startWrapper('dnstpl', 'cloneable', 'class=cloneable');
$form->setField('dnsremove', 'button', 'class=dnsremove removeitem|value=', false);
$form->setField('dnsserver', 'text', 'disabled=disabled|size=15|maxlength=15', false);
$form->setValidationFunc('dnsserver', 'validIpAddr');
$form->exitWrapper();
$form->clonePrevWrapper('dnsserver', $cfgPtr['dnsserver'], 'class=dnsclone');
$form->exitWrapper();
$form->startWrapper('rw_adddnsbtn', 'controls');
$form->setField('adddns', 'button', 'class=additem|value=');
$form->exitWrapper();
//
$form->exitBlock();
$form->exitFieldSet();
$form->exitWrapper();
$form->startWrapper('tab-2');
$form->startFieldset('fset_topo', _('Topology'));
// network topology
$form->startBlock('rw_topology');
$form->setLabel(null, _('Topology'), 'topology', 'class=labelcol');
$form->startBlock('rw_topology', 'right');
$form->setField('topology', 'select', 'name=topology');
