I was going threw my router, and i found these two things, ARP binding, and theres DHCP address reservation, whats the deference? do we do the same thing and if so why do they need them both there? I am looking to just give a PC the same IP everytime, the help thing on the router page says they both do that but is there any diference? or advantage to useing one over the other? my router is a netcom NB504.