DHCP and IP fixed per Mac

radavy · May 7, 2010, 12:09 PM

Hi !

I configure PFSENSE DHCP server:

mac: xx:xx:xx:xx:xx:xx ==> IP: 10.10.10.211

But I can connect one other PC (Mac=yy:yy:yy:yy:yy:yy) if my IP is fixed 10.10.10.211 ????

ie is it possible only mac: xx:xx:xx:xx:xx:xx <==> IP: 10.10.10.211

Thanks

wallabybob · May 7, 2010, 10:24 PM

To clarify, you mean you connect a PC whose interface is set to static IP address 10.10.10.211? Or do you mean pfSense DHCP assigns IP address 10.10.10.211 to a PC whose MAC address is not xx.xx.xx.xx.xx.xx? Or do you mean something else?

danswartz · May 8, 2010, 4:38 AM

yeah i didn't get what he meant either :(

jimp · May 10, 2010, 1:53 PM

It sounds like he wants to do static ARP.

He assigned an IP address to a MAC address, but was surprised to find that he could use that IP from another machine if it's hardcoded.

If he wants to lock down the IP<-> MAC association, the only way to do that is with static ARP, but if you do that you have to hardcode all of them.

danswartz · May 10, 2010, 3:46 PM

Ahhh, okay.

radavy · May 10, 2010, 5:00 PM

Thank you jimp !!

But how configure arp static ?

Best regard !

jimp · May 10, 2010, 5:27 PM

You set it up under the DHCP server options:

http://doc.pfsense.org/index.php/DHCP_Server