[ovs-discuss] gre tunnel create problem

Justin Pettit jpettit at nicira.com
Fri Jun 1 21:15:56 UTC 2012


I was thinking the same thing.  Do you think we put it in the website FAQ or a document in the repo?

--Justin


On Jun 1, 2012, at 2:14 PM, Ben Pfaff wrote:

> We need to document which features work with the upstream kernel module
> and which only with the separate one.  So far I don't think we do that.
> 
> On Fri, Jun 01, 2012 at 09:34:05AM -0700, Justin Pettit wrote:
>> My guess is that you're both using the upstreamed OVS kernel module,
>> which does not have the built-in support for tunneling.  You can use
>> Linux's native GRE tunnels and just attach them as you would other
>> interfaces to OVS.  You'll lose the ability to dynamically set the key
>> and create tunnels through the database, though.  If you need that
>> functionality, you'll need to use the kernel module that comes with
>> our distribution.
>> 
>> --Justin
>> 
>> 
>> On Jun 1, 2012, at 4:25 AM, Madko wrote:
>> 
>>> I have exactly the same problem on Fedora 17 (kernel 3.3.7), https://bugzilla.redhat.com/show_bug.cgi?id=821159
>>> 
>>> 
>>> 2012/6/1 faicker mo <faicker.mo at gmail.com>
>>> I create gre tunnel like this:
>>> 
>>> ovs-vsctl add-port br0 gre0 -- set interface gre0 type=gre options:remote_ip=192.168.1.101
>>> 
>>> But I found:
>>> 
>>> ovs-vsctl show
>>> 8a59928b-ebf3-44f9-85d4-80fdac32207f
>>>    Bridge "br0"
>>>        Port "br0"
>>>            Interface "br0"
>>>                type: internal
>>>        Port "gre0"
>>>            Interface "gre0"
>>>                type: gre
>>>                options: {remote_ip="192.168.1.101"}
>>>        Port "vnet0"
>>>            Interface "vnet0"
>>> 
>>> the /var/log/messages.log:
>>> 
>>> 7040 Jun  1 19:03:02 archlinux ovs-vswitchd: 00062|bridge|INFO|created port gre0 on bridge br0                                                                
>>> 7041 Jun  1 19:03:02 archlinux ovs-vswitchd: 00063|dpif|WARN|system at br0: failed to add gre0 as port: Address family not supported by protocol                 
>>> 7042 Jun  1 19:03:02 archlinux ovs-vswitchd: 00064|bridge|WARN|gre0 port has no interfaces, dropping                                                          
>>> 7043 Jun  1 19:03:02 archlinux ovs-vswitchd: 00065|bridge|INFO|destroyed port gre0 on bridge br0                                                              
>>> 7044 Jun  1 19:03:02 archlinux ovs-vswitchd: 00066|bridge|WARN|bridge br0: using default bridge Ethernet address b3:8b:ef:f1:d6:41 
>>> 
>>> -------
>>> I searched, and I unloaded the gre,ip_gre module, but the problem is the same. 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> discuss mailing list
>>> discuss at openvswitch.org
>>> http://openvswitch.org/mailman/listinfo/discuss
>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> Edouard Bourguignon
>>> _______________________________________________
>>> discuss mailing list
>>> discuss at openvswitch.org
>>> http://openvswitch.org/mailman/listinfo/discuss
>> 
>> _______________________________________________
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