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<base href="https://bugzilla.netfilter.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - manual page does not describe special icmp type of 255"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1124">1124</a>
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<th>Summary</th>
<td>manual page does not describe special icmp type of 255
</td>
</tr>
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<th>Product</th>
<td>iptables
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P5
</td>
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<th>Component</th>
<td>iptables
</td>
</tr>
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<th>Assignee</th>
<td>netfilter-buglog@lists.netfilter.org
</td>
</tr>
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<th>Reporter</th>
<td>alexis@m2osw.com
</td>
</tr></table>
<p>
<div>
<pre>When I type `man iptables-extensions` under Ubuntu 16.04, I get a page with the
following description of the ICMP type:
icmp (IPv4-specific)
This extension can be used if `--protocol icmp' is specified. It
provides the following option:
[!] --icmp-type {type[/code]|typename}
This allows specification of the ICMP type, which can be a
numeric ICMP type, type/code pair, or one of the ICMP type names shown
by the command
iptables -p icmp -h
As we can see, there is no word about the "Note" found on this page:
<a href="https://www.frozentux.net/iptables-tutorial/chunkyhtml/a6339.html">https://www.frozentux.net/iptables-tutorial/chunkyhtml/a6339.html</a>
which clearly says that 255 is treated specially by iptables to mean "any".
I think it would be a good thing to add that note to the manual page. Also
since there is a name "any", maybe make a clear correlation between both.</pre>
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