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Configured as Network Hub Mode
Network Subnet: 192.168.0.0/24
On client computer, we added route. For any request to 192.168.1.0/24 will flow to 192.168.0.10
Configured as Site Gateway
Network Subnet: 192.168.1.0/24
On client computer, we added route. For any request to 192.168.0.0/24 will flow to 192.168.1.249
Do check out the diagram on the architecture & routing table.
Try ping on both sites. By right you should able to ping HQ Site & DR Site.
If you cannot ping HQ Site from DR Site, remember to add HUB Site for HQ Site- Veeam PN.
That should do the trick to enable both sites able to ping each other.