How do I set up ADFS 2.0 as both RP and IP

Question

I am trying to find out how to set up 2 separate versions of ADFS, one as the RP and the other as the IP. We have 2 websites both protected by 2 different ADFS implementations. I need to set up one ADFS to trust the other so that the users in one can have a Single sign on experience across both applications. This seems like it should be a popular configuration but all of the information I can find uses some other type of IP, either ACS, or some other brand STS.

Answer 1

For two ADFS say A (IP) and B (RP).

A has a website X.

B has a website Y.

• Set A up as claims provider trust to B

• Set B up as a RP for A.

A has an RP which is X application.

B has an RP which is Y application.

So A has two RP.

To set this up, in the ADFS wizard for B, select "Add Claims Provider Trust" and user A's metadata.

In the ADFS wizard for A, select "Add Relying Party Trust" and user B's metadata.