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<pre><span style="color:#1F497D">> </span>Am Mittwoch, 23. Dezember 2015, 12:28:06 schrieb Ulrich Windl:<o:p></o:p></pre>
<pre>><i> >>> Somanath Jeeva <<a href="http://clusterlabs.org/mailman/listinfo/users">somanath.jeeva at ericsson.com</a>> schrieb am 23.12.2015 um<o:p></o:p></i></pre>
<pre>><i> >>> 06:01 in<o:p></o:p></i></pre>
<pre>><i> Nachricht <<a href="http://clusterlabs.org/mailman/listinfo/users">4F5E5141ED95FF45B3128F3C7B1B2A6721ABE07B at eusaamb109.ericsson.se</a>>:<o:p></o:p></i></pre>
<pre>><i> > Hi ,<o:p></o:p></i></pre>
<pre>><i> > <o:p></o:p></i></pre>
<pre>><i> > Thanks for the quick reply.<o:p></o:p></i></pre>
<pre>><i> > <o:p></o:p></i></pre>
<pre>><i> > I will check with our IT team regarding the multicast MAC at switch level.<o:p></o:p></i></pre>
<pre>><i> > <o:p></o:p></i></pre>
<pre>><i> > But the Virtual IP is reachable for 15 minutes or so after I start the<o:p></o:p></i></pre>
<pre>><i> > pacemaker/Corosync service. After which it becomes unreachable. However<o:p></o:p></i></pre>
<pre>><i> > when I restart the iptables service it becomes reachable again for<o:p></o:p></i></pre>
<pre>><i> > another 15 min.<o:p></o:p></i></pre>
<pre>><i> It could be some ARP cache problem. Maybe watch it.<o:p></o:p></i></pre>
<pre><o:p> </o:p></pre>
<pre><span style="color:#1F497D">> </span>Please check the ARP tables of your switches / routers. IP address clones use <o:p></o:p></pre>
<pre><span style="color:#1F497D">> </span>multicast MAC addresses for the unicast IP address. Some switches (esp Cisco) <o:p></o:p></pre>
<pre><span style="color:#1F497D">> </span>do not like that. You would have to configure the MAC addresses manually.<o:p></o:p></pre>
<pre><span style="color:#1F497D"><o:p> </o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do I have to configure this MAC address manually at switch level?. The Multicast MAC was automatically added in the iptables after started the pacemaker/Corosync service.<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"># service iptables status<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Table: filter<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Chain INPUT (policy ACCEPT)<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">num target prot opt source destination <o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">1 CLUSTERIP all -- 0.0.0.0/0 10.61.150.55 CLUSTERIP hashmode=sourceip clustermac=51:33:83:16:0A:BF total_nodes=2 local_node=1 hash_init=0<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 <o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Chain FORWARD (policy ACCEPT)<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">num target prot opt source destination <o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Chain OUTPUT (policy ACCEPT)<o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">num target prot opt source destination <o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">1 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 <o:p></o:p></span></pre>
<pre><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></pre>
<pre><span style="color:#1F497D">> </span>Mit freundlichen Grüßen,<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><span style="color:#1F497D">> </span>Michael Schwartzkopff<o:p></o:p></pre>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#4F81BD">With Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#4F81BD">Somanath Thilak J<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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