[ovs-discuss] Problems setting up VxLAN

[Dominic Curran]

Scrum that.

cd /lib/modules/3.11.0-12-generic/kernel/drivers/net
modprobe vxlan

$ lsmod | grep vx
vxlan                  27837  0
ip_tunnel              23600  1 vxlan

Still no dependency on openvswitch though ??


On Thu, Feb 20, 2014 at 1:48 PM, Dominic Curran <gigamuffin at gmail.com>wrote:

>
>
>
> On Thu, Feb 20, 2014 at 7:29 AM, Gurucharan Shetty <shettyg at nicira.com>wrote:
>
>> On Wed, Feb 19, 2014 at 2:19 PM, Dominic Curran <gigamuffin at gmail.com>
>> wrote:
>> > Hi
>> >
>> > I'm running OVS on top of Ubuntu 13.10.  I have installed OVS and built
>> the
>> > tip of the latest master (as of yesterday).
>> >
>> > I'm trying to setup VXLAN between two machines.
>> >
>> >
>> > The two machines can ping each other on their DHCP assigned addresses.
>> >
>> > On M1 I setup:
>> > $ sudo ovs-vsctl add-br br1
>> > $ sudo ifconfig br1 192.168.0.101 netmask 255.255.255.0
>> > $ sudo ovs-vsctl add-port br1 vx -- set interface vx type=vxlan
>> > options:remote_ip=192.168.0.102 options:key=40
>> This won't work.
>> Assuming eth1 of M1 is connected to eth1 of M2:
>> Keep the IP address on eth1 and not on br1.
>>
>> Or do something like this on M1
>> ovs-vsctl add-br br1
>> ovs-vsctl add-port br1 eth1
>> ifconfig br1 192.168.0.101 netmask 255.255.255.0
>>
>> ovs-vsctl add-br br-int
>> ovs-vsctl add-port br-int vx -- set interface vx type=vxlan
>> options:remote_ip=192.168.0.102 options:key=40
>>
>> Similar on M2
>>
>> #on M1
>> ifconfig br-int 1.2.3.4/24
>>
>> #on M2
>> ifconfig br-int 1.2.3.5/24
>>
>> Now, you can ping 1.2.3.5 from M1 over a vxlan tunnel, provided that
>> your kernel module supports vxlan tunnels.
>>
>>
> So do I need a vxlan kernel module then ?
>
> B/c I found a blog which shows a vxlan module loaded:
> e.g.
> $ lsmod | grep openv
> openvswitch            66772  0
> vxlan                  37238  1 openvswitch
> gre                    13888  1 openvswitch
> libcrc32c              12603  1 openvswitch
>
> ...when showing how to setup OVS & Fedora.
>
> Link:
> http://networkstatic.net/install-open-vswitch-networking-red-hat-fedora-20/
>
> I ask because I do not have such a module loaded:
> $ lsmod | grep openv
> openvswitch            79599  0
> gre                    14174  1 openvswitch
> libcrc32c              12615  1 openvswitch
>
> and when I try to load the module it fails with an error:
>
> dom at ubuntu:/lib/modules/3.11.0-12-generic/kernel/drivers/net$ sudo insmod
> vxlan.ko
> [sudo] password for dom:
> Error: could not insert module vxlan.ko: Unknown symbol in module
>
> $ tail /var/log/kern.log -n5
> Feb 20 20:09:01 ubuntu kernel: [   12.881112] device ovs-system entered
> promiscuous mode
> Feb 20 20:09:01 ubuntu kernel: [   12.881301] openvswitch: netlink: Key
> attribute has unexpected length (type=62, length=4, expected=0).
> Feb 20 20:09:01 ubuntu kernel: [   12.997359] device br1 entered
> promiscuous mode
> Feb 20 21:02:54 ubuntu kernel: [ 3245.701560] vxlan: Unknown symbol
> ip_tunnel_get_stats64 (err 0)
> Feb 20 21:35:44 ubuntu kernel: [ 5215.922225] vxlan: Unknown symbol
> ip_tunnel_get_stats64 (err 0)
>
>
> Its a 13.10 Ubuntu kernel:
> $ uname -r
> 3.11.0-12-generic
>
> Which I find a bit odd.  is this a known issue ?  Do I need to build a
> later kernel as well.
>
> Any help appreciated.
>
> Thanks
> dom
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20140220/58bfb4f8/attachment-0002.html>