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      <base href="https://bugzilla.netfilter.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - iptables v1.8.0 (nf_tables) has a problem inverting in-interface and maybe out"
   href="https://bugzilla.netfilter.org/show_bug.cgi?id=1302">1302</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>iptables v1.8.0 (nf_tables) has a problem inverting in-interface and maybe out
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>iptables
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>CVS (please indicate timestamp)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86_64
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P5
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>iptables
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>netfilter-buglog@lists.netfilter.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>trever@middleearth.sapphiresunday.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>From a script that works with plain iptables:
iptables -A INPUT -i \!ppp0 -p udp --destination-port 53 -j ACCEPT

# iptables-nft -A INPUT -i \!ppp0 -p tcp --destination-port 53 -j ACCEPT

does not work!

In part it yields:

iifname "!ppp0" ip protocol tcp counter packets 0 bytes 0 accept

in nft list ruleset

I believe that is supposed to be 

iifname != "ppp0" ip protocol tcp counter packets 0 bytes 0 accept.

I am afraid my attempts at finding why this is have not yielded any good
results.

This is the only thing keeping me from moving to iptables-nft from iptables and
nft from ipset. I suppose one final thing. ipset had swap to swap one live set
for another. I have some very large sometimes drastically change sets and this
helps speed things up tremendously.</pre>
        </div>
      </p>
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