Nmap Development: Re: Nmap Port 0 problem

["Andrew Lutomirski" <andy () luto us>]

On 4/2/07, David Matousek <david () matousec com> wrote:
> Hi,
>
> running "nmap -P0 -p0 -sT 1.2.3.4" on Windows machines (tested on 2000 and 2003 with Nmap 4.11
> and 2000 with Nmap 4.21ALPHA4) causes some strange reports like
>
> "Strange read error from 1.2.3.4 (10049 - 'Unknown error'): No such file or directory"
This is WSAEADDRNOTAVAIL, which sounds like correct behavior to me.
We could do better on the error message, though (we clearly have a bug
in whatever generated 'Unknown error' since this is a standard error
code).

I'm surprised this works on Linux.

> If any other port is used instead of 0, it works fine, if P0 is not specified, it appears only if
> the machine is alive, if -sT is not specified, it works fine.
-sS should just work.

--Andy

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