<div dir="ltr"><div><div><div><div>I got a bunch of errors on some of our systems yesterday, and they appear<br></div>to be related to the following oddity. We have a bunch of zones running on<br></div>r151014.<br><br></div>Looking at the lo virtual interfaces assigned to two of the zones, this is what<br></div>they look like for IPv4:<br><div><div><div><div><div><br>lo0:10: flags=2001000849<UP,LOOPBACK,<wbr>RUNNING,MULTICAST,IPv4,<wbr>VIRTUAL> mtu 8232 index 1<br> zone wilma<br> inet 127.0.0.1 netmask ff000000 <br>lo0:11: flags=2001000849<UP,LOOPBACK,<wbr>RUNNING,MULTICAST,IPv4,<wbr>VIRTUAL> mtu 8232 index 1<br> zone fred<br> inet 127.0.0.1 netmask ff000000 <br><br></div><div>And this for IPv6:<br></div><div><br>lo0:10: flags=2002000849<UP,LOOPBACK,<wbr>RUNNING,MULTICAST,IPv6,<wbr>VIRTUAL> mtu 8252 index 1<br> zone fred<br> inet6 ::1/128 <br>lo0:11: flags=2002000849<UP,LOOPBACK,<wbr>RUNNING,MULTICAST,IPv6,<wbr>VIRTUAL> mtu 8252 index 1<br> zone wilma<br> inet6 ::1/128 <br><br></div><div>Notice that lo:10 and lo:11 have been swapped over. The IPv4 version of lo:10<br></div><div>is assigned to wilma, but the IPv6 version is assigned to fred. And vice versa<br></div><div>with lo:11.<br></div><div><br>This is what it looks like in one of the zones:<br><br>lo0:11: flags=2001000849<UP,LOOPBACK,<wbr>RUNNING,MULTICAST,IPv4,<wbr>VIRTUAL> mtu 8232 index 1<br> inet 127.0.0.1 netmask ff000000 <br>lo0:10: flags=2002000849<UP,LOOPBACK,<wbr>RUNNING,MULTICAST,IPv6,<wbr>VIRTUAL> mtu 8252 index 1<br> inet6 ::1/128 <br><br></div><div>This doesn't look quite right to me, and it's not something I've ever seen before.<br><br>This begs some questions: Is there a real problem here? Is it just us? (I've<br>spotted it on more than one system, although it seems to be our new fast<br></div><div>machines and not the old slow ones.) What's going to be affected?<br><br></div><div>-- <br><div class="m_5952910909626555274gmail_signature">-Peter Tribble<br><a href="http://www.petertribble.co.uk/" target="_blank">http://www.petertribble.co.uk/</a> - <a href="http://ptribble.blogspot.com/" target="_blank">http://ptribble.blogspot.com/</a></div>
</div></div></div></div></div></div>