[JunkMail] IPF & DHCP request

[geek]

i read it already, but i have a problem with it

#----------------------------------------------------------------
# Allow bootp traffic in from your ISP's DHCP server only. 
#----------------------------------------------------------------
pass in quick on ed0 proto udp from X.X.X.X/32 to any port = 68 keep state

My IP changes every time i reboot the machine, how i can make this works ?!