Re: [PATCHed] Fix IPProto Scan (-sO) for UDP

[Jan Engelhardt <jengelh () linux01 gwdg de>]

> The attached patch (/nmap SVN r4404) fixes the IPProto Scan when a ICMP
> Port Unreachable is received for UDP (and possibly others). We weren't
> checking for the ICMP message before, so it was coming up open|filtered
> or filtered. The SVN log:
>
> ------------------------------------------------------------------------
> r4404 | kris | 2007-01-27 14:09:14 -0600 (Sat, 27 Jan 2007) | 1 line
>
> Fix the IPProto scan for UDP. Now we check for ICMP Port Unreachable and
> call it open if we get one. This was coming up open|filtered, and
> sometimes filtered before.
> ------------------------------------------------------------------------

Hm, why should the port be open if we get Port Unreachable?


        -`J'
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