Hi,
Your AP4130DN, do you have a controller or is this configured as FAT(Standalone)?
For the mac authentication to work properly, two things you need to do:
1. For the Huawei portion, you need to configure the correct radius template containing the correct radius attribute to pass to your Radius Server.
Check Huawei documentation for the radius attribute of the controller or AP that's for the MAC address authentication attribute. I can't fully remember that attribute but I think its service Type.
2. Radius Server need to have the mac-authentication profile to capture your Wlan user radius authentication. That one you need to check with the Radius Server team.
You can try to check the link below. Although this is for switches, it has the same concept, just need to change the connection type.
Link:
http://support.huawei.com/enterprise/en/doc/EDOC1000114005?section=k00b