> Using a scan range of the format XX.XX.XX.0/24 results
> in attempts to contact the reserved address '0' (gateway) and
> '255' (broadcast).  These attempts result in error messages:

(1) It depends on which machine you run this on. On my ubuntu machine I
get no errors at all, even when running as an unprivileged user. I.e. some
systems do not consider it illegal. (Depends on iptables and/or kernel
configuration?)

(2) Broadcast is not always on 255. It could very well be on 127, meaning
that nbtscan would have to read (and trust) network configuration of the
host OS when deciding which IP addresses to skip.

(3) As for the 0 (network address), I'm not even sure it's illegal to use,
although convention says you shouldn't.


Greetings,
Walter Doekes




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