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    <title>topic How to create an ACL rule to block ICMPv6 traffic in entire Network in Network Architecture &amp; Design</title>
    <link>https://community.extremenetworks.com/t5/network-architecture-design/how-to-create-an-acl-rule-to-block-icmpv6-traffic-in-entire/m-p/12620#M24</link>
    <description>&lt;P&gt;How to create an ACL rule to block ICMPv6 traffic in entire Network&lt;BR /&gt;&lt;BR /&gt;Since ICMPV6 multicast are coming from multiple ports and flood the whole network.&lt;BR /&gt;It is not easy to configure each and every single port to apply ACL rule.&lt;BR /&gt;&lt;BR /&gt;Below link ACL rule to Block IPv6 make sense in this case. But what about for ICMPV6 with different length.&lt;BR /&gt;And I need similar configuration on this to block ICMPV6 Multicast Listener Report.&lt;BR /&gt;&lt;BR /&gt;kindly take note Length are &lt;STRONG&gt;86, 90, 110, 130 and 150&lt;/STRONG&gt;&lt;BR /&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper" image-alt="d076e936bdcd43698532ecea324dd8e8_RackMultipart20150904-29695-e7g3nv-ICMPV6_inline.jpg"&gt;&lt;img src="https://community.extremenetworks.com/t5/image/serverpage/image-id/637i1E89F7CFB4016FB4/image-size/large?v=v2&amp;amp;px=999" role="button" title="d076e936bdcd43698532ecea324dd8e8_RackMultipart20150904-29695-e7g3nv-ICMPV6_inline.jpg" alt="d076e936bdcd43698532ecea324dd8e8_RackMultipart20150904-29695-e7g3nv-ICMPV6_inline.jpg" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;=======================================&lt;BR /&gt;Sample config from Brandon is as follow. And this is to apply this ingress on the affected ports. and ethernet-type is 0x86dd which is IPv6.&lt;BR /&gt;&lt;BR /&gt;&lt;A href="https://community.extremenetworks.com/#" target="_self" rel="noreferrer"&gt;Brandon Clay&lt;/A&gt;,&lt;BR /&gt;&lt;BR /&gt;entry deny_ipv6{ if { ethernet-type 0x86dd; } then { deny; count ipv6_drop; } }&lt;BR /&gt;&lt;BR /&gt;Other related links....&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;How to create ACL in EXOS and apply in Ports&lt;/STRONG&gt;&lt;BR /&gt;&lt;A href="https://extremeportal.force.com/ExtrArticleDetail?an=000083345" target="_blank" rel="nofollow noreferrer noopener"&gt;https://extremeportal.force.com/ExtrArticleDetail?an=000083345&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;it is known issue&lt;/STRONG&gt;&lt;BR /&gt;&lt;A href="https://communities.intel.com/thread/48051" target="_blank" rel="nofollow noreferrer noopener"&gt;https://communities.intel.com/thread/48051&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;How to create an ACL rule to block IPv6 &lt;/STRONG&gt;traffic &lt;A href="https://extremeportal.force.com/ExtrArticleDetail?an=000083208" target="_blank" rel="nofollow noreferrer noopener"&gt;https://extremeportal.force.com/ExtrArticleDetail?an=000083208&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;lost Network message:ICMPv6 Mulitcast Listener&lt;/STRONG&gt; Report&lt;A href="https://community.extremenetworks.com/extreme/topics/lost-network-message-icmpv6-mulitcast-listener-report" target="_self" rel="noreferrer"&gt;https://community.extremenetworks.com/extreme/topics/lost-network-message-icmpv6-mulitcast-listener-...&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Fri, 04 Sep 2015 21:20:00 GMT</pubDate>
    <dc:creator>Paul11</dc:creator>
    <dc:date>2015-09-04T21:20:00Z</dc:date>
    <item>
      <title>How to create an ACL rule to block ICMPv6 traffic in entire Network</title>
      <link>https://community.extremenetworks.com/t5/network-architecture-design/how-to-create-an-acl-rule-to-block-icmpv6-traffic-in-entire/m-p/12620#M24</link>
      <description>&lt;P&gt;How to create an ACL rule to block ICMPv6 traffic in entire Network&lt;BR /&gt;&lt;BR /&gt;Since ICMPV6 multicast are coming from multiple ports and flood the whole network.&lt;BR /&gt;It is not easy to configure each and every single port to apply ACL rule.&lt;BR /&gt;&lt;BR /&gt;Below link ACL rule to Block IPv6 make sense in this case. But what about for ICMPV6 with different length.&lt;BR /&gt;And I need similar configuration on this to block ICMPV6 Multicast Listener Report.&lt;BR /&gt;&lt;BR /&gt;kindly take note Length are &lt;STRONG&gt;86, 90, 110, 130 and 150&lt;/STRONG&gt;&lt;BR /&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper" image-alt="d076e936bdcd43698532ecea324dd8e8_RackMultipart20150904-29695-e7g3nv-ICMPV6_inline.jpg"&gt;&lt;img src="https://community.extremenetworks.com/t5/image/serverpage/image-id/637i1E89F7CFB4016FB4/image-size/large?v=v2&amp;amp;px=999" role="button" title="d076e936bdcd43698532ecea324dd8e8_RackMultipart20150904-29695-e7g3nv-ICMPV6_inline.jpg" alt="d076e936bdcd43698532ecea324dd8e8_RackMultipart20150904-29695-e7g3nv-ICMPV6_inline.jpg" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;=======================================&lt;BR /&gt;Sample config from Brandon is as follow. And this is to apply this ingress on the affected ports. and ethernet-type is 0x86dd which is IPv6.&lt;BR /&gt;&lt;BR /&gt;&lt;A href="https://community.extremenetworks.com/#" target="_self" rel="noreferrer"&gt;Brandon Clay&lt;/A&gt;,&lt;BR /&gt;&lt;BR /&gt;entry deny_ipv6{ if { ethernet-type 0x86dd; } then { deny; count ipv6_drop; } }&lt;BR /&gt;&lt;BR /&gt;Other related links....&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;How to create ACL in EXOS and apply in Ports&lt;/STRONG&gt;&lt;BR /&gt;&lt;A href="https://extremeportal.force.com/ExtrArticleDetail?an=000083345" target="_blank" rel="nofollow noreferrer noopener"&gt;https://extremeportal.force.com/ExtrArticleDetail?an=000083345&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;it is known issue&lt;/STRONG&gt;&lt;BR /&gt;&lt;A href="https://communities.intel.com/thread/48051" target="_blank" rel="nofollow noreferrer noopener"&gt;https://communities.intel.com/thread/48051&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;How to create an ACL rule to block IPv6 &lt;/STRONG&gt;traffic &lt;A href="https://extremeportal.force.com/ExtrArticleDetail?an=000083208" target="_blank" rel="nofollow noreferrer noopener"&gt;https://extremeportal.force.com/ExtrArticleDetail?an=000083208&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;STRONG&gt;lost Network message:ICMPv6 Mulitcast Listener&lt;/STRONG&gt; Report&lt;A href="https://community.extremenetworks.com/extreme/topics/lost-network-message-icmpv6-mulitcast-listener-report" target="_self" rel="noreferrer"&gt;https://community.extremenetworks.com/extreme/topics/lost-network-message-icmpv6-mulitcast-listener-...&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Fri, 04 Sep 2015 21:20:00 GMT</pubDate>
      <guid>https://community.extremenetworks.com/t5/network-architecture-design/how-to-create-an-acl-rule-to-block-icmpv6-traffic-in-entire/m-p/12620#M24</guid>
      <dc:creator>Paul11</dc:creator>
      <dc:date>2015-09-04T21:20:00Z</dc:date>
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