[jira] [Reopened] (CLOUDSTACK-1141) Ipv6 - After network restart (and reboot router) , we do not see the existing vms dnsentries not being programmed in the router.

["Sangeetha Hariharan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-1141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sangeetha Hariharan reopened CLOUDSTACK-1141:
---------------------------------------------


Tested with the latest build from network refactor branch.

After network restart , we see that the new router is being created.This router is assigned a different Ipv6 address.This router has the entries of teh existing Vms in /etc/dhcphosts.txt entry.

Since the guest Vms still point to the older Ipv6 address , name resolution between the new Vms fail. 

Router:
root@r-32-VM:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 06:01:8c:00:00:33
          inet6 addr: fc00:3:1370:0:d857:f566:e49c:4688/64 Scope:Global
          inet6 addr: fe80::401:8cff:fe00:33/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:113 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:21142 (20.6 KiB)  TX bytes:1296 (1.2 KiB)


Guest Vm:
sangeetha@ubuntu-123:~$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver fc00:3:1370::2103:a6ac:2c4d:fad4
sangeetha@ubuntu-123:~$
 
                
> Ipv6 - After network restart (and reboot router) , we do not see the existing vms dnsentries not being programmed in the router.
> --------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-1141
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1141
>             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 from networkrefactor branch.
>            Reporter: Sangeetha Hariharan
>            Assignee: Sheng Yang
>             Fix For: 4.1.0
>
>
> Ipv6 - After network restart , we do not see the existing vms dnsentries not being programmed in the router.
> Steps to reproduce the problem:
> Create a Ipv6 network.
> Deploy vms in this network.
> Restart network with clean option.
> After network is restarted  successfully , the router does not have  any existing vm's dnsentries being programmed in the router.
> /etc/dhcphosts.txt is empty.
> We are not able to reach Vms with in the network using their names.
> rebbot router also does not bring back these entries to the router.

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