Hello,
For some too-long-to-explain reasons, I have to deploy a, let’s face it, quite weird architecture. A very simplified diagram is enclosed. To summarize, each site has two WAN accesses. These WAN accesses have to be completely separated, even though they are connected to the same LAN. In my diagram, you can see that routers named X-1 are all connected together, but never with the routers named X-2. One other important, spokes never communicate together. Hubs do. Finally, all the links in the WAN are GRE tunnels.
In order to achieve all of that, I’m thinking of using DMVPN. Question is: which topology should I use ? I can imagine two options: 6 separated DMVPN with one hub on each or 2 DMVPN with 3 hubs on each, but I don’t know if this one is feasible.
I hope you have enough details to help me. If not, please ask as many questions as needed.
Any help will be greatly appreciated. Thanks in advance !
François
