I've set up an IdP-initiated link to a cloud app. I'd like my user-base to be able to get there with the minimum of fuss. If I can redirect users from http://federation.testnet.com to http:/federation.testnet.com/adfs/ls/IdpInitiatedSignOn.aspx then they can simply type 'federation' into the browser and hit <ENTER> and that will be a much better experience. Better still if I pick a more memorable name.
So, how do I set up IIS 7.5 to redirect users from http://federation.testnet.com tohttp:/federation.testnet.com/adfs/ls/IdpInitiatedSignOn.aspx? I tried the obvious thing but it got into a loop - I imagine loads of people must have wanted to do this for federation but I haven't found a related post.