Without NAT you have to drop DHCP port 67 incoming from the customer to kill rogue DHCP servers there. As for only pulling one IP, there is not a widely adopted method to manage this. It is a pain in my ass too.
-Ty On Wed, Mar 11, 2015 at 9:05 AM, Brett A Mansfield < [email protected]> wrote: > I’m curious what everyone does to prevent a customer from pulling more > than one IP address without using PPPoE, and how do you prevent their > router from backfeeding it’s DCHP server onto your network if they plug in > the cable to a LAN port instead of the WAN port? > > Thank you, > Brett A Mansfield > Silver Lake Internet >
