[ovs-discuss] tunnel between open vswitch on xenservers

Jesse Gross jesse at nicira.com
Sun Oct 2 21:38:59 UTC 2011


On Oct 2, 2011 1:24 PM, "terryxing" <xingtianyi at gmail.com> wrote:
>
> Thanks very much.
>
> So you mean, we can not setup the tunnel between two host residing in two
private network behind the gateway (gw has public ip not the xenserver
itself.)
>
> Since right now, our xenserver hosts are all within the private network
behind the GW, every traffic must go through the gateway which does the NAT
port forward to all traffic coming in and out.
>
> As you just said, the xenserver host must have no choice but to have
public ip and connect to the internet not behind the gateway to establish
the tunnel  ?

You just need IP connectivity between the hosts that are the tunnel
endpoints. It doesn't matter whether the addresses are public or private.
Can they ping each other?  If yes, it should be fine.
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