[ovs-discuss] IPv4/ IPv6 GRE tunnels

Arnold Bechtoldt mail at arnoldbechtoldt.com
Wed Nov 12 14:18:50 UTC 2014


Is there IPv6 support with GRE available at all?


Arnold

-- 
Arnold Bechtoldt

Karlsruhe, Germany

On 11.11.14 21:57, Arnold Bechtoldt wrote:
> Dear list,
> 
> I need to setup IPv6 connectivity in a OpenNebula setup using OVS
> 2.1.2-1 (via datapath-dkms) on Debian wheezy systems.
> 
> There are three compute nodes connected via GRE tunnels to each other to
> provide inter-host connectivity for virtual machines attached to bridges
> with 802.1Q VLANs.
> 
> This works great for IPv4. And for IPv6 on L2 bridges routed via ISP's
> IPv6 default gateway, too.
> 
> Unfortunately hosts can't communicate each other via IPv6 in a vlan.
> Which steps are necessary to get them together? Can I use existing IPv4
> GRE tunnel(s) to encapsulate IPv6 traffic? Do I need dedicated IPv6 GRE
> tunnels? Can I find more documentation regarding Open vSwitch, GRE and
> IPv6 on the Net?
> 
> Thank you in advance!
> 
> 
> Arnold
> 
> 
> ==========
> # uname -a
> Linux hpm1000 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1 x86_64 GNU/Linux
> 
> 
> # ovs-vsctl show
>     Bridge "br0"
>         Port "vnet52"
>             Interface "vnet52"
> ...
>         Port "eth0"
>             Interface "eth0"
>         Port "br0"
>             Interface "br0"
>                 type: internal
>     Bridge "br1"
>         Port "vnet40"
>             tag: 11
>             Interface "vnet40"
>         Port "vnet3"
>             tag: 10
>             Interface "vnet3"
> ...
>         Port "gre2"
>             Interface "gre2"
>                 type: gre
>                 options: {remote_ip="172.16.0.13"}
>         Port "br1"
>             Interface "br1"
>                 type: internal
>         Port "vif0"
>             tag: 10
>             Interface "vif0"
>                 type: internal
> 
>         Port "gre1"
>             Interface "gre1"
>                 type: gre
>                 options: {remote_ip="172.16.0.12"}
>     Bridge "br2"
>         Port "eth1"
>             Interface "eth1"
>         Port "br2"
>             Interface "br2"
>                 type: internal
>     ovs_version: "2.1.2"
> 
> 
> # ip l | grep eth1
> 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP
> mode DEFAULT qlen 1000
> ==========
> 
> 
> 
> 
> _______________________________________________
> discuss mailing list
> discuss at openvswitch.org
> http://openvswitch.org/mailman/listinfo/discuss
> 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0xE2356889.asc
Type: application/pgp-keys
Size: 3134 bytes
Desc: not available
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20141112/a5d43bc7/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20141112/a5d43bc7/attachment-0002.sig>


More information about the discuss mailing list