> > This might be simple, but somehow i doubt it:
> > i have some windoze users who are configured via dhcp by my linux
> > dhcp/bootp server. There are some creative users who want to*
> > around with their tcpip and configure a static address. This static
> > address sometimes conflicts with machines which bootup later in the
> > day and this render them useless until the problem is noticed.
> > is there a program (or a way to write one) that can prevent certain ip
> > address from broadcasting on the network unless they resolve to a
> > particular ethernet address? i have a central switch at my disposal
> > as well.
> > what might be the best way to manage this assuming the users won't
> > listen to reason?
> Serve static IP numbers to users who want a static IP number.
> There is a utility out there called arping that returns the mac addy
> when you ping the IP number which could be helpful.
> - cameron
do the job and maintain a hash of ip and ethernet addresses, serving
only those dhcp client requests from the correct ethernet address.
i can't imagine we in the Unix world don't have a clean solution
outside of hacking the damn dhcpd daemon itself to maintain that hash
and only serve "authorized" ethernet addresses the "authorized" ip
anyone have any comments/suggestions
and someone said Linux has radius True  False 
anyway i don't like the sound of this crap.