Doesnt netcat do something like that too?
On Sat, 30 Aug 1997, Brian Mitchell wrote:
> On Fri, 29 Aug 1997, Lyndon David wrote:
>
> I've written code that does this. I'm also almost positive the Ballista
> scanner includes code that does exactly this thing.
>
> > Hi
> >
> > Quick question,
> >
> > Does anyone know of a UDP port scanner. I know that this is
> > a much harder job than a TCP port scanner. If you fire off
> > an arbitary UDP packet at a machine and you get an ICMP message
> > back saying nothing listening then you know that that port is
> > dead. If you get nothing back then either something is listening
> > and swallowed it or the packet got lost or the filtering is
> > set not to send ICMP replies.
> >
> > Anyone know of any software that does this?
> >
> > Thanks
> >
> > Lyndon
>
>
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