Set the Azure Relay for on-premises data gateway
During installation of the on-premises data gateway, the Azure Relays are automatically provisioned. However, you have the option to provide your own relay details.
To provide your own relay details
Select Provide Relay details.
You can now provide additional details about your relay.
WCF Relay endpoint URI—Provide the URI (highlighted below) for your WCF relay from the Azure portal.
Send key value and the Listen Key Value—Create two shared access policies, one called SendAccessKey and the other ListenAccessKey. Provide either the primary or the secondary keys in the on-premises data gateway app. To learn more, see Azure Relay authentication and authorization.