What about these settings from your basic network settings page?
Enable DHCP Server:   
DHCP IP Address Range:  to  
DHCP Lease Time:  (minutes) 
Always broadcast:   (compatibility for some DHCP Clients) 
NetBIOS announcement:   
Learn NetBIOS from WAN:   
Enable DHCP Server:   checked
DHCP IP Address Range:  10.0.0.100 to 10.0.0.199 
DHCP Lease Time:  1440
Always broadcast:   checked
NetBIOS announcement:   (not checked)
Learn NetBIOS from WAN: (not checked)
NetBIOS Scope: (empty, grayed out)
Learn NetBIOS from WAN:  (mixed-mode, grayed out)