Problem with NAT (Help!)

What kind of Internet connection ? for 10mb up AND down - sounds like a metro Ethernet product, or some other flavor. What router and AP are your currently using ? You have 17 wireless connections at your "house" ?

A NAT router does just that - maps all users to a single IP address. BTW - what is "rapid share" ?

Seems odd for a website to do that... what about all the "dynamic" IP users that access that website ? I can see it for logging and such - but to "remember" an IP address ? Guess I've seen some incoming packets trying to access my systems from "remembered dynamic IP addresses".

You almost need 2 routed lans - one for the NAT folks, and another for your Public IP users... Not really possible in the normal construct and definitions of consumer routers. Might check on the Cisco newsgroup - to see if any version can handle your scenario.

It's a file sharing thing:

I think they limit each source IP to a single download at a time, so multiple users sharing a single (NATed) source IP would mean only one of those people could download at a time and the others would have to wait. When the first one finishes, one more download would be allowed to proceed.

I haven't used it, but that's my understanding.

sounds about right - if that is their intent - gee.... wonder what kind of files are being "uploaded" and then downloaded by folks...

since your main focus seems to be the "rapid sharing" website issue of them using the IP address to restrict concurrent access, along with having 17 "users" in your "house".... this seems more and more like a college dorm issue with people wanting to download "stuff"......

SO - good luck - and doubt you will find an easy way to use traditional consumer routers that will operate as both a NAT router AND also somehow support multiple public IP assigned addresses so you can download even more "stuff".

Anybody taking odds on this? My bet is on homework (or possibly test) answers...

When I heard rapidshare mentioned, my first thought was along the same lines as ps56k. *shrug*

Rapidshare allows free downloads from the same IP address every 15 minutes, unless you pay for a premium account, which allows you unlimited uploads and downloads.

yeah - and his "horndog" email address is a nice touch also.... thinking maybe bigger stuff - with an internal 10mb link (sounds campus wide ethernet) and only 1 person at a time can download..... it would have to be a HUGE file - like maybe a "shared" HD movie :)

Had not thought along the lines of the DMZ and NAT 1:1

This whole scenario is based on the need for multiple external, WAN, IP addresses being mapped to the internal folks..... either explicit/static or dynamic -

The main users appear to be downloading "stuff" from a file sharing website that logs the IP address, and only allows a single user download per IP address.

SO - when using traditional NAT with a single dynamic WAN address the users are restricted to only one user at a time.... hence the need for multiple external addresses.

In summary - do any of the mainstream consumer off the shelf routers/WAPs like say the Linksys, Netgear, Dlink products offer NAT 1:1 as a selection vs just the DMZ mapping ?