Disaster Recovery from remote

Networking & Firewalls
1

I noticed that Acronis (and maybe Veeam) have products to spin up a backup in their cloud to keep businesses going in the event of a DR. I asked about this in the Live Stream on Sunday, but I feel like this would be a better place to discuss.

My question was initially how to get Layer 2 traffic between the cloud and the local subnet, so as to keep continuity of services like DHCP, and IP range. I believe Tom’s suggestion was to start a client VM in the cloud alongside the server, and get users to RDP into that.

To avoid layer 2, would you simply set the cloud server on a new subnet, and then have the local router take over DHCP? It would then point the DNS for the Windows clients to the new IP of the server in the cloud? I appreciate layer 2 is “noisy” compared to layer 3, but would it significantly congest the VPN tunnel? I am sure VxLAN exists for a reason!

Thanks

2

I really depends, DR plans for large companies are mostly driven by budgets, acceptable down times, and how that app works. As I suggested in the live stream, spinning up a server in the cloud and having them VPN and RDP to a session on the server is an option, but many modern business apps are web based to they don’t even need anything more that a DNS change to where the web app is located.