Attribute User-name is mising

Hi all, My Free Radiuss 1.1.1. doesn't want to Proxy an accounting request if he is missining the User-Name attribute My co partneres are Cellular company and they don't use" User-Name attribute" I was trying to use the radrelay , but it has some limitition Pls help me to resolve this issue Any help will be appriciate My setup is very basic My set up goes like this Proxy.conf Realm DEFAULT type = radius authhost = x.x.x accthost.= x.x.x.x secret = aaaaa Realm NULL type = radius authhost = x.x.x accthost.= x.x.x.x secret = aaaaa I was truing to use hints file but no sueccess Hints file DEFAULT User-Name = "ccc" , Realm = DEFAULT