Before adding an Azure network, we had 2 sites with a DC in each. Lets call these sites A and B. There was a VPN between them so that the DCs could replicate.
We have added an Azure network, and have added a further DC in the Azure network. Lets call this virtual site C. We have created a VPN from site A to C, and this allowed us to create and replicate the DC.
The problem is that the DC in C cannot see the DC in B. In Azure you can only create one Site-to_Site VPN.
We are getting errors such as:
The File Replication Service is having trouble enabling replication from C-DC to B-DC.....
The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology....
I have been told that the DC will eventually fail, and that since it isn't possible to create a VPN from B to C, there is no way around this. Is this correct? I am not a network expert, but shouldn't it be possible to force the traffic from C to B via the VPN
between C and A and then through the VPN between A and B? As in...
Traffic from C -> B = C -> VPN -> A -> VPN -> B
If it is possible, how do I get this working? Is it a case of using route ADD?