On Oct 2, 2011 1:24 PM, "terryxing" <xingtia...@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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