So you have a netgear router that is not capable of PXE options in it’s DHCP server? Have you checked if there is a firmware update that may provide this option?
If not, then you’ll have to setup the ProxyDHCP for Fog using the article on the wiki, [url]http://www.fogproject.org/wiki/index.php/Using_FOG_with_an_unmodifiable_DHCP_server/_Using_FOG_with_no_DHCP_server[/url]