Today I received a question if it was possible to do a cross subscription peering… with one big catch; that it was between the subscription of a service provider and their customer(s). So let’s see what is possible?
Update : Oct 2018
At Ignite 2018 it was announced that peering will also be able to work cross tenants.
Public Preview Announcement
When we take a look at the announcement, we see the following statement ;
Note that you can peer virtual networks that exist in two different subscriptions as long as a privileged user of both subscriptions authorizes the peering and the subscriptions are associated with the same Active Directory tenant.
Now the from this we can already see that it is possible to doe cross subscription peering. As a requirement, we need a user that is authorized on both subscriptions AND that the subscriptions are associated with the same AAD tenant.
The latter caused a bit of confusion on the requestor part, where the statement was made if a B2B invite would solve this issue. The answer to this is “no”. The B2B invite lies on the authorized user part, and is not related to the tenant of the subscription!
Let’s try it out?!?