Sangeetha Hariharan created CLOUDSTACK-1205:
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Summary: 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
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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