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Nmap Development: Re: Subnet masks in Dotted-Decimal format

Re: Subnet masks in Dotted-Decimal format

From: Livio Zanol Puppim <livio.zanol.puppim_at_gmail.com>
Date: Thu, 19 Oct 2006 12:29:40 -0300

Yeah, I know It's against RFC, but a lot of things are against it either...
Like "every host should reply an echo request with an echo reply" and many
many other things... Some companys likes to use this kind of mask to
"masquerade" their networks... I've never tried the method you've
menthioned, i'll give this a try...

Thanks,
Lívio Zanol Puppim

2006/10/19, Martin Mačok <martin.macok_at_underground.cz>:
>
> On Wed, Oct 18, 2006 at 09:02:05PM -0200, Livio Zanol Puppim wrote:
>
> > I'm asking this cause I have already seen crazies subnet masks used
> > (like 255.0.255.255).
>
> This is against RFC, anyway. Netmask should be continuous and
> expressible in /X notation where X is (0,32).
>
> > So with that kind of subnet masks I can't make a complete subnet
> > scan with the normal format...
>
> Have you tried scanning A.0-255.C.D ?
>
> Martin Mačok
> ICT Security Consultant
>
> _______________________________________________
> Sent through the nmap-dev mailing list
> http://cgi.insecure.org/mailman/listinfo/nmap-dev
> Archived at http://SecLists.Org
>

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Received on Oct 19 2006

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