[jira] [Resolved] (CLOUDSTACK-6241) Dnsmasq programming error when deploy IPv6 and IPv4 in one VM with IPv4 as default network

["Sheng Yang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-6241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sheng Yang resolved CLOUDSTACK-6241.
------------------------------------

    Resolution: Fixed

> Dnsmasq programming error when deploy IPv6 and IPv4 in one VM with IPv4 as default network
> ------------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-6241
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6241
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Virtual Router
>    Affects Versions: 4.2.0, 4.3.0, 4.4.0
>            Reporter: Sheng Yang
>            Assignee: Sheng Yang
>            Priority: Critical
>             Fix For: 4.4.0
>
>
> If one VM is created with both IPv4 and IPv6 network, and use IPv4 network as default network, then the programming of IPv6 network would be wrong in the VR.
> Deploying Vm with a multiple NIC's when mixing IPv4/IPv6 networks results in incorrect entries 
> in /etc/dhcphosts.txt on VR's. As a consequence dnsmasq doesn't provide IPv6 addresses in that case.
> Below is a content of /etc/dhcphosts.txt on one of the VR's after spinning 2 VM's. First one had a 3 NIC's - 
> one of them IPv4. Second 2 NIC's - only IPv6. As You can see first entry in incorrectly formatted.
> 06:aa:38:05:48:2d,set:,,vm-test1,infinite 
> id:00:03:00:01:06:d8:fa:05:48:31,[3ffe:a1ca:c10d:1:3333:3333:3333:3335],vm-test2,infinite
> Create 3 shared networks - one ipv4 only and two ipv6 only
> Deploy VM with two NIC's in two ipv6 networks above
> Observe, that everything works as expected
> Deploy VM with 3 NIC's in all of the above defined networks, first NIC in ipv4
> network
> Observe that NIC's in ipv6 networks didn't get IP@ assigned,
> content of dhcphosts.txt on VR's serving ipv6 networks is incorrect.



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