Cisco ACS 5.1 (avoid MAC verification)

[Vodacom Mozambique]

Hello,

I have a Cisco ACS 5.1 and each user that authenticates by a mobile APN number, his phone number is stored in the "MAC Address" field.

However, when I want to search for all the authentications by a specific number, the Cisco ACS 5.1 automatically reconizes the number and convert it to MAC format:

e.g: 258841234567, it converts to: 25-84-12-34-56

I've tried to disable the javascript to avoid the verification but I didn't work. The form does not submit.

Any workaround to bypass this MAC verification?

Thanks,