DHCP payload probe?

[David Fifield <david () bamsoftware com>]

On Tue, Sep 08, 2009 at 07:40:42AM -0500, Ron wrote:
> I put together a script to probe DHCP servers this weekend.  
> Unfortunately, I only have my Linksys WRT54g with stock firmware to test  
> against, so I'd appreciate others giving it a shot!
>
> Basically, do a UDP scan against port 67 on your gateway device, as  
> root, and see what the response is.
>
> nmap -d -sU -p67 --script=dhcp-inform <target>
>
> I've attached it as a .patch because it requires an extra function added  
> to ipOps.lua.

With your knowledge of DHCP, can you recommend a safe response-provoking
payload that could be sent with all UDP probes to port 67 during port
scanning?

David Fifield

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