Geek help: static IP addresses

[ciphergoth]

Quick geek help sought with making sure I understand IP routing properly.

Zen have allocated me the static IP address block 82.68.129.72/29. Of these eight addresses, one is the network address, one is the broadcast address.

I've fitted an ADSL card to my main PC, saltationism. So it has two interfaces: an ADSL interface and a LAN one. That's two more addresses taken. So there are four left: I can give up to four more machines on the LAN static IP addresses.

The thing that worries me is that if the subnet for the LAN is 82.68.129.72/29, then can I assign an address from that subnet to the ADSL card? If I do, will my LAN be able to route to that address? If not, what should I do instead?

Comments

[ciphergoth.livejournal.com]

PPP, inet addr:82.68.129.78 P-t-P:62.3.83.3. If I can give both the same address that would rock - saves an IP from my very limited stock!

I guess the other solution would be to have two subnets on the same wire, and assign the LAN interface an address from the 192.168 subnet - can the two subnets talk to each other happily?

thanks muchly! (also thanks to drreagan who raised a similar point)