Can you change or set the default website the APM uses when you choose to download the reciever client upon connection? By default, the F5 loads http://receiver.citrix.com/. The client wants to change it to thier own for a legacy install.
Yes, of course you can.
A Citrix client bundle enables delivery of a Citrix Receiver client to a user's Windows computer when a client is not currently installed, or when a newer client is available. Access Policy Manager (APM) detects whether the Citrix Receiver client is present and redirects users to a download URL, or downloads a Citrix Receiver client that you have uploaded.
In Access Policy Manager, you specify the Citrix client bundle in a connectivity profile. By default, a connectivity profile includes the default Citrix bundle, /Common/default-citrix-client-bundle, which contains a download URL, receiver.citrix.com.