[ovs-discuss] GRE over IPv6 configuration

Ben Pfaff blp at ovn.org
Tue Jun 4 17:24:47 UTC 2019


On Tue, Jun 04, 2019 at 03:13:02PM +0000, Eli Britstein wrote:
> Hello,
> 
> I would like to configure a GRE tunnel over IPv6, on a Linux system.
> However, I encounter the following:
> 
> My command:
> ovs-vsctl add-port br1 gre6 -- set interface gre6 type=ip6gre 
> options:remote_ip= 2001:db8:0:f102::11 options:key=55
> 
> Output:
> ovs-vsctl: Error detected while setting up 'gre6': could not add network 
> device gre6 to ofproto (Address family not supported by protocol).  See 
> ovs-vswitchd log for details.
> ovs-vsctl: The default log directory is "/var/log/openvswitch".
> 
> In the log:
> bridge|WARN|could not add network device gre6 to ofproto (Address family 
> not supported by protocol)
> 
> I notice that if I want to define a ip6gretap with “ip link”, there is a 
> need to use “-6” option, to set the correct family.
> 
> Is there a way to note the correct family (though I think should be 
> implicit by “ip6gre”)? Or maybe some other configuration?

OVS doesn't have an "ip6gre" interface type.  Just use "gre".


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