Network Design for failover

Ven Nis 1 Reputation point
2020-11-13T14:14:01.12+00:00

Hi I am relatively new to Azure, I have a question with Network failover -

I have a router (R1) running on Linux VM in US EAST which has a Firewall VM (FW) towards the LAN side of the router. I choose to have regional redundancy for the routers hence deploy router (R2) on Linux VM on US WEST and connect both using VNET Peering.
My question is in case of R1 going down (OS crash or memory issues etc), can I route traffic to R2 from FW via VNET peering?

Thanks in Advance

Azure Virtual Network
Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
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  1. SaiKishor-MSFT 17,231 Reputation points
    2020-11-17T21:12:19.3+00:00

    @Ven Nis

    You cannot use a UDR for VNET peering so this is something your Firewall has to do i.e., decide to push traffic to R2 when it does not receive a response from R1. When it does push traffic to R2 at any point, it will use the peering connection to forward the traffic accordingly during failover and this will work.

    Please let me know if you have any further questions. Thank you!

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