> in our college we use a Linux box connected to an ISP through a (slow) leased line 
>to give access to the Internet
> at more than 70 clients connected on the internal LAN. As you can imagine when 70 
>students start to navigate
> our link get saturated very quickly preventing everyone from the outside world to 
>reach our site.
> 
> We would like to implement a variable bandwidth using one or more ISDN dialup lines 
>to be activated when
> the traffic goes over a certain limit and dropped when not needed anymore to save 
>costs.
> 
> I've been looking to the HOWTO's  and the usual sources of info but I wasn't able to 
>find any solution. Could
> anyone point me in the right direction?

If you don't mind source hacking have a look at this package when the
bandwidth usage hits a certain limit get it to trigger an ISDN line
dialup.

 http://cebu.mozcom.com/riker/iptraf/

      Tim Fletcher                  .~.
                                    /V\       L   I   N   U   X   
   [EMAIL PROTECTED]           // \\  >Don't fear the penguin<
[EMAIL PROTECTED]       /(   )\
                                   ^^-^^
Slowly and surely the unix crept up on the Nintendo user ...

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