Specifying a certain ip to a certain mac through cisco router?!?! cant it b done?!?

Hi all,





i'm obviously a newbie, i just started ccna 2..





i need your help with something if possible!





first, is there a way to assign specific ips to specific mac adresses on my lan, while i have dhcp on ?!


heres how my topology works:


my cisco 2811 gives out ip through dhcp, now i have 5 machines that i cannot set static ips 2, since i move them around more often so i have to leave their dhcp option enabled, on the other hand i want the router to give them SPECIFIC ips each time theyre connected to its lan due to the fact tht i have different shaping solutions set for those specific machines..


so once again my quesiotn is there a command that instructs the router to give ips that i specified to those machines each time they connect?!





secondly, is there a way to monitor each ip's bandwidth usage?! like some utility or someway in router options!





any help would be appreciated :)
Specifying a certain ip to a certain mac through cisco router?!?! cant it b done?!?
The first part is pretty easy, you just need a manual binding, you can find the syntax for it, and all other things DHCP, here:


http://www.cisco.com/en/US/docs/ios/ipad...





The second part gets a little more complicated. There are tons of options, what's your budget, needs and experience. Look into NetFlow which is free in IOS. If you Google for Netflow Collectors, you might find some open source ones, you will certainly find a lot of them you can buy.





Hope this helps.