[ovs-discuss] tunnel between open vswitch on xenservers

[Jesse Gross]

On Wed, Oct 5, 2011 at 3:14 PM, terryxing <xingtianyi at gmail.com> wrote:
> Thanks very much.
>
> Can Open VSwitch GRE tunnel support ipv6  ?  Since we have the private ip
> address conflicting problem when tunneling different clusters. Each cluster
> has its dedicated DHCP server assigning ip addresses. It is possible to
> assign the same ip for VM at two cluster. When they are isolated, that is
> fine. But when those two cloud hosts are tunneled. that would be a problem.

It supports IPv6 inside the GRE tunnel but not as the transport protocol.

> Is there any solution solving the ip conflicting problem  on open Switch ?
> There are multiple VMs with private ip (for example., 192.168.0.2) address
> at each host. Any consideration on this concern in Open vSwitch ?

There are several ways to segment the network inside tunnels, for
example, it is still possible to use vlans.