A joint venture between two companies results in a fully functional WLAN Aruba solution. The network administrator uses the following script to integrate the WLAN solution with two radius servers, radius1 and radius2.

While all users authenticate with username@domainname.com type of credentials, radius1 has user accounts with the domain name portion.

Which additional configuration is required to authenticate corp1.com users with radius1 and corp2 users with radius2?