Re: nmap.bind to set NSE socket source address

[Ron <ron () skullsecurity net>]

On 10/11/2009 06:11 PM, David Fifield wrote:
> Ron, I added the function nmap.bind in r15813. In the DHCP script you
> will use it like this:
>
>         try(socket:bind(nil, 68))
>
> Let me know if it provides what you need.
>
> David Fifield
Hi David,

The changes work as advertised, thanks for making them!

I am, however, still having a problem, and it's because of something I 
hadn't counted on in the protocol. When I wrote the dhcp-discover 
script, I was using DHCPINFORM, which comes directly back to my ip 
address. However, I just realized that DHCPDISCOVER doesn't come back to 
me; rather, it comes back to 255.255.255.255.

Take a look at the attached .pcap file -- I did DHCPINFORM, which worked 
fine with the changes, then I did DHCPDISCOVER, which didn't.

Do you know if there's any way to receive broadcast packets without a pcap?

Thanks!
Ron

--
Ron Bowes
http://www.skullsecurity.org/

Attachment: dhcp-problems.pcap
Description:

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