I have a cable ISP which assigns IP addresses via DHCP. For all practical purposes, they're static IPs, because my ISP gives out IPs based on your MAC address.

Currently, I have a linux router connected directly to the cable modem (and thus getting a pseudo-static IP), and all the rest of my machines (windows/linux) have static private IPs (10.x.x.x) and connect to the router.

What I'd like to do is have my internal machines use DHCP to get a pseudo-static IP from my ISP by going thru my router and down the cable modem.

If anyone has any ideas as to how to do this, by all means, speak up. I've tried a few things, but I really don't have any idea how to get this to work.

Thanks in advance!

-Bill.

why do you want to have pseudostatic ips on your machines?? if everything is working fine?
and if you want those ips from your isp than you have to declare your mac addresses and so on.
again why do you need it??

I want them all to have real IPs so that I can access each machine from the Internet instead of just my router.

In other words, I'd like to be able to use:
a.dudenet.net
b.dudenet.net
c.dudenet.net

instead of

router.dudenet.net:2000
router.dudenet.net:3000
router.dudenet.net:4000

Port forwarding sucks...

I don't mind doing a little extra work on my router to have superior functionality.

Do a google for "linux dhcp relay". Of course your ISP might not let you do this

Rus

if your isp is giving you the ip numbers upon the mac address than it's not a real dhcp, i will not change in time, so you can ask for those pseudostatic ips, and.....

That looks like a good solution, but I have a question:

Will packets get routed to my router or will my ISP be majorly confused? Will it help if my router speaks RIP or some other routing protocol?

The reason for the question is that my former ISP was really awful (AT&T), and my new one is really new and hasn't quite gotten their act together (Comcast). If at all possible, I'd like not to involve them.

Thanks for the suggestion.

If you are declairing the new mac addresses, then they already will know what you're about, so they can serve you or not with your request. And concerning the RIP I think I'm not able to give you correct answer, sorry, but i know somebody will be. Keep up!