RADIUS shared secret over internet

Hi, I have read on the archives regarding the above issue and that the RADIUS shared secret is an obfuscation method of securing the communications between the NAS and RADIUS Server. One method i have read is by using IPSec but i am asking around if there are other ideas that i may not have thought of. Regards, Muhammad Nuzaihan Bin Kamal Luddin -- Taqi Systems 269-J Jalan Panji Kampung Chempaka, Kota Bharu, Kelantan 16100 pub 4096R/4C77F88C 2013-04-06 [expires: 2015-04-06] Key fingerprint = 2FE1 87FA E775 2E05 CC0F B3F6 3CB7 C65F 4C77 F88C uid Muhammad Nuzaihan Bin Kamal Luddin