How to add extended infrastructure IP addresses in nsg for databricks ?

Hi @sidhartha mohanty

Extended infrastructure IP address ranges are used for standby Azure Databricks infrastructure to improve the stability of Databricks services. Add a UDR for extended infrastructure IPs, unless they are not supported in your region.

The IP addresses to use depend on whether or not your Azure Databricks workspace uses secure cluster connectivity (SCC):

Secure cluster connectivity enabled: use the SCC relay value for the workspace region, as well as the Webapp and Extended infrastructure values.
refer-
To get the IP addresses required for user-defined routes, use the following tables and instructions.
https://video2.skills-academy.com/en-us/azure/databricks/administration-guide/cloud-configurations/azure/udr#control-plane-nat-webapp-and-extended-infrastructure-ip-addresses

Create user-defined routes and associate them with your Azure Databricks virtual network subnets
https://video2.skills-academy.com/en-us/azure/databricks/administration-guide/cloud-configurations/azure/on-prem-network#--step-3-create-user-defined-routes-and-associate-them-with-your-azure-databricks-virtual-network-subnets

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