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Posted to dev@cloudstack.apache.org by "Sangeetha Hariharan (JIRA)" <ji...@apache.org> on 2013/02/09 01:13:12 UTC

[jira] [Assigned] (CLOUDSTACK-1205) Ipv6 - Ubuntu 12.10 guest Vms looses default route (after it expiration time ~ 30 mts) when ipv6.autoconfig parameters are disabled except for net.ipv6.conf.lo.autoconf which is enabled.

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-1205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sangeetha Hariharan reassigned CLOUDSTACK-1205:
-----------------------------------------------

    Assignee: Sheng Yang
    
> Ipv6 - Ubuntu 12.10 guest Vms looses default route (after it expiration time ~ 30 mts) when ipv6.autoconfig parameters are disabled except for  net.ipv6.conf.lo.autoconf which is enabled.
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-1205
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1205
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server
>    Affects Versions: 4.1.0
>         Environment: Latest build form network refactor branch.
>            Reporter: Sangeetha Hariharan
>            Assignee: Sheng Yang
>             Fix For: 4.1.0
>
>
> Ipv6 - Ubuntu 12.10 guest Vms looses default route (after it expiration time ~ 30 mts) when ipv6.autoconfig parameters are disabled except for  net.ipv6.conf.lo.autoconf which is enabled.
> Steps to reproduce the problem:
> Create a ipv6 network.
> Deploy Ubuntu 12.10 guest Vms in Ipv6 network which have all pv6.autoconfig parameters disabled except for  net.ipv6.conf.lo.autoconf which is enabled.
> As part of starting the Vm , we see that the ip route is set in the guest VM.
> Wait for ~30 mt ( expiration time to pass).
> Notice that the VM has lost its ipv6 route.
> sangeetha@ubuntu-123:~$ sysctl -a | grep auto
> sysctl: dev.cdrom.autoclose = 1
> dev.cdrom.autoeject = 0
> kernel.auto_msgmni = 1
> permission denied on key 'kernel.cad_pid'
> kernel.sched_autogroup_enabled = 1
> sysctl: permission denied on key 'kernel.usermodehelper.bset'
> sysctl: permission denied on key 'kernel.usermodehelper.inheritable'
> net.ipv6.conf.all.autoconf = 0
> net.ipv6.conf.default.autoconf = 0
> net.ipv6.conf.eth0.autoconf = 0
> net.ipv6.conf.lo.autoconf = 1
> sangeetha@ubuntu-123:~$ ip -6 route
> fc00:3:1370::/64 dev eth0  proto kernel  metric 256
> fe80::/64 dev eth0  proto kernel  metric 256
> sangeetha@ubuntu-123:~$

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