<div dir="ltr"><div><div>Hello Clement, All,<br><br></div>Let's add this one to this list of NI oddities <img goomoji="360" style="margin: 0px 0.2ex; vertical-align: middle;" src="cid:360@goomoji.gmail"><br><br></div>Best regards.<br><br><br><div class="gmail_extra"><br><div class="gmail_quote">2014-10-13 13:36 GMT+02:00 Clement Cavadore <span dir="ltr"><<a href="mailto:clement@cavadore.net" target="_blank">clement@cavadore.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Seems that I am not alone:<br>
<a href="http://community.brocade.com/t5/Ethernet-Switches-Routers/Getting-log-message-MAC-movement-detected-after-code-upgrade-to/td-p/66490" target="_blank">http://community.brocade.com/t5/Ethernet-Switches-Routers/Getting-log-message-MAC-movement-detected-after-code-upgrade-to/td-p/66490</a><br>
<br>
Regards,<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Clément Cavadore<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
On Mon, 2014-10-13 at 13:34 +0200, Clement Cavadore wrote:<br>
> Hi,<br>
><br>
> After upgrading to 5.6 (CER devices), we keep having the following<br>
> messages:<br>
><br>
> Oct 13 12:46:03:W:IP/ARP: IP address 194.68.129.xxx MAC movement detected, changed from MAC 0022.83d4.1ff0 / port 1/3 to MAC 0022.8354.1ff0 / port 1/3<br>
> Oct 13 12:46:02:W:IP/ARP: IP address 194.68.129.xxx MAC movement detected, changed from MAC 0022.8354.1ff0 / port 1/3 to MAC 0022.83d4.1ff0 / port 1/3<br>
> Oct 13 12:44:13:W:IP/ARP: IP address 194.68.129.xxx MAC movement detected, changed from MAC 0022.83d4.1ff0 / port 1/3 to MAC 0022.8354.1ff0 / port 1/3<br>
> Oct 13 12:44:09:W:IP/ARP: IP address 194.68.129.xxx MAC movement detected, changed from MAC 0022.8354.1ff0 / port 1/3 to MAC 0022.83d4.1ff0 / port 1/3<br>
> Oct 13 12:40:14:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 009b.0de4.41c0 / port 1/3 to MAC 001b.0de4.41c0 / port 1/3<br>
> Oct 13 12:40:14:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 001b.0de4.41c0 / port 1/3 to MAC 009b.0de4.41c0 / port 1/3<br>
> Oct 13 12:37:40:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 009b.0de4.41c0 / port 1/3 to MAC 001b.0de4.41c0 / port 1/3<br>
> Oct 13 12:37:40:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 001b.0de4.41c0 / port 1/3 to MAC 009b.0de4.41c0 / port 1/3<br>
> Oct 13 12:16:50:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 009b.0de4.41c0 / port 1/3 to MAC 001b.0de4.41c0 / port 1/3<br>
> Oct 13 12:16:50:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 001b.0de4.41c0 / port 1/3 to MAC 009b.0de4.41c0 / port 1/3<br>
> Oct 13 12:12:02:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 009b.0de4.41c0 / port 1/3 to MAC 001b.0de4.41c0 / port 1/3<br>
> Oct 13 12:12:02:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 001b.0de4.41c0 / port 1/3 to MAC 009b.0de4.41c0 / port 1/3<br>
> Oct 13 12:11:44:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 009b.0de4.41c0 / port 1/3 to MAC 001b.0de4.41c0 / port 1/3<br>
> Oct 13 12:11:44:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 001b.0de4.41c0 / port 1/3 to MAC 009b.0de4.41c0 / port 1/3<br>
> Oct 13 12:10:16:W:IP/ARP: IP address 80.249.208.zzz MAC movement detected, changed from MAC 0025.900a.0c17 / port 1/38 to MAC 000e.d6b5.7c00 / port 1/38<br>
> Oct 13 12:09:33:W:IP/ARP: IP address 80.249.208.zzz MAC movement detected, changed from MAC 000e.d6b5.7c00 / port 1/38 to MAC 0025.900a.0c17 / port 1/38<br>
> Oct 13 12:06:18:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 009b.0de4.41c0 / port 1/3 to MAC 001b.0de4.41c0 / port 1/3<br>
> Oct 13 12:06:18:W:IP/ARP: IP address 194.68.129.yyy MAC movement detected, changed from MAC 001b.0de4.41c0 / port 1/3 to MAC 009b.0de4.41c0 / port 1/3<br>
><br>
> I am pretty sure that the MACs are not really changing, as it is on IXPs<br>
> where strict mac filtering is enabled. This happens on various devices,<br>
> from various networks I manage. There is no operational problem, apart<br>
> from fulfilling my log buffer<br>
><br>
> Anyone aware of any kind of bug with that ?<br>
><br>
> Thanks,<br>
><br>
<br>
<br>
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