Re: [SAGE] Tool: grab all dhcp leases, ala DOS?

[Allan West <allan@cookie.org>]

sage@richfox.org wrote:
> Hi,
> 
> A while ago I heard about a tool, perhaps proprietary, that would allow 
> a single system to obtain many, many, leases from a DHCP server. Does 
> anyone know of any open source tools that might provide this 
> functionality (preferably with the ability to accept or reject IP leases 
> based on the IP subnet)? I googled and googled but I couldn't separate 
> the noise from the signal in the results...
> 
> Thanks,
> Rich.

I'd be curious to know why you want to DOS one or more subnets.

It wouldn't work on any of my subnets, since machines have to be 
registered to get an address from our DHCP server. Most DHCP servers 
will ping the IP before handing out an address to a requester, so you'd 
have to impersonate multiple MAC addresses and hold all of the received 
IPs in use with virtual interfaces. It seems like an interesting 
technical challenge, but I'm not seeing an obvious use for it.