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RE: Forced DHCP setup

NoCatAuth (nocat.net) does exactly this.  Although I think NoCat is
designed with wireless in mind.  Not sure if it works with normal wired
network cards, but I can't see any reason why it wouldn't.

On Wed, 30 Oct 2002, C. R. Oldham wrote:

> > I don't believe it's possible to have a user log in to get an IP.
> It is possible, in hotels that have broadband in rooms, and on some
> university campuses I've been too they have a DHCP server setup to serve
> addresses from a private block.  On that network there is a webserver
> setup to intercept any http request coming from a client in the private
> block and redirect the user to a page where he/she has to login.  On
> login a cgi (or some such) makes a change in the DHCP database to
> allocate the user a "real" IP.  The user gets instructions on the
> ensuing webpage to do a release/renew and boom they are setup.
> Sorry, I don't know of any opensource packages to do this, but it
> shouldn't be too hard.
> Of course, unless you setup your routers to block packets based on MAC
> address this won't prevent someone from "guessing" a valid IP and
> setting it up static.
> --
> C. R. Oldham
> Director of Technology
> --
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