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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - set update with timeout 0s removes timeout"
   href="https://bugzilla.netfilter.org/show_bug.cgi?id=1249#c1">Comment # 1</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - set update with timeout 0s removes timeout"
   href="https://bugzilla.netfilter.org/show_bug.cgi?id=1249">bug 1249</a>
              from <span class="vcard"><a class="email" href="mailto:pablo@netfilter.org" title="Pablo Neira Ayuso <pablo@netfilter.org>"> <span class="fn">Pablo Neira Ayuso</span></a>
</span></b>
        <pre>I think this is what you're requesting, it's available upstream since 0.9.3

commit a87f2a2227be29cc1e91f3301cec963f02aa5178
Author: Ander Juaristi <<a href="mailto:a@juaristi.eus">a@juaristi.eus</a>>
Date:   Tue Jul 9 20:03:52 2019 +0200

    netfilter: support for element deletion

    This patch implements element deletion from ruleset.

    Example:

            table ip set-test {
                    set testset {
                            type ipv4_addr;
                            flags timeout;
                    }

                    chain outputchain {
                            policy accept;
                            type filter hook output priority filter;

                            delete @testset { ip saddr }
                    }
            }</pre>
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