[ovs-discuss] could not add network device ovn-xxxxxx-0 to ofproto (Address family not supported by protocol)

[Matthias May]

On 27/04/18 14:20, Paul Greenberg wrote:
> 
> When IPv6 is disables in `/boot/grub2/grub.cfg`:
> 
> ```
> linux16 ... ipv6.disable=1
> ```
> 
> Then GENEVE interface does not come up properly.
> 
> ```
> # ovs-vsctl show
>         Port "ovn-14a54f-0"
>             Interface "ovn-14a54f-0"
>                 type: geneve
>                 options: {csum="true", key=flow, remote_ip="10.10.10.10"}
>                 error: "could not add network device ovn-14a54f-0 to ofproto (Address family not supported by protocol)"
> ```
> 
> Additionally, run the following commands:
> 
> ```
> # cat /proc/version
> Linux version 3.10.0-514.21.1.el7.x86_64 (mockbuild at x86-020.build.eng.bos.redhat.com) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC) ) #1 SMP Sat Apr 22 02:41:35 EDT 2017
> 
> # ovs-vswitchd --version
> ovs-vswitchd (Open vSwitch) 2.9.0
> ```
> 
> When IPv6 is enabled, then OVN works properly.
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> 

Hi
I remember running into the same when playing around with GRE on a system where IPv6 was disabled.

BR
Matthias