We need outgoing IP addresses (used by the Azure Cloud Service) to whitelist in order to configure firewalls of external services to allow requests from that Cloud Service. Is there any way to find out the outgoing IP addresses used by the Azure Cloud Service?

We can find the outgoing IP addresses(Four IP addresses) used by Azure Web App in Azure Preview Portal (using Settings --> Properties blade) but we need a way to find the outgoing IP addresses used by Azure Cloud Service?

Any help will be appreciated.

• Edited by Shekar P Wednesday, July 29, 2015 1:59 PM

Hi,

 The Outbound IP address for a Cloud Service is its VIP (Public facing IP).
 
 "Azure Cloud Services, of course, are behind a load balancer, so despite the fact that each instance would have its own IP, all instances share a single public IP the assigned Azure VIP, and it is this IP that will get presented to remote servers. This is true for a single instance or multiple instances within the same service.
 The VIP will remain for the lifetime of the deployment and will survive service updates, but will not remain if the deployment is deleted, something customers should beware of.
 This model works well when scaling out the deployment as no single-instances IP is at play. "
 Refer: https://yossidahan.wordpress.com/2013/09/20/ip-addresses-in-azure/

Regards,
Nithin Rathnakar

• Proposed as answer by Nithin.RathnakarMicrosoft contingent staff, Moderator 19 hours 12 minutes ago
• Marked as answer by Nithin.RathnakarMicrosoft contingent staff, Moderator 19 hours 11 minutes ago