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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 - [ipset] ability to use a more complex mask on hash:*net* functionality for family ipv6"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1373">1373</a>
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<th>Summary</th>
<td>[ipset] ability to use a more complex mask on hash:*net* functionality for family ipv6
</td>
</tr>
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<th>Product</th>
<td>ipset
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>x86_64
</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>default
</td>
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<th>Assignee</th>
<td>netfilter-buglog@lists.netfilter.org
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<th>Reporter</th>
<td>philippe.guibert@6wind.com
</td>
</tr></table>
<p>
<div>
<pre>Today, it is possible to apply a subnet mask.
ipset create foo hash:net family ipv6
ipset add foo 1001::0/112
The need is to use hexadecimal format of mask, to be able to create more subtle
masks. This filter can be useful, if one wants to filter only on the last 4
bytes of the ipv6 address, because we know this is an IPv4 mapped IPv6 address.
example:
ipset add foo 1001::0/0xffffff00
# above example does not look at the first 12 bytes of the ipv6 address, and
will focus on only 3 bytes of the incoming IPv6 address.</pre>
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</p>
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