SecGW uses RADIUS interface between AAA and SecGW for EAP-MD5 authentication of IPSec peer. Radius protocol is used between AAA Server and SecGW. SecGW will act as EAP-pass-through only.
Assumptions and Limitation
The implementation will be valid only for SecGW RAS mode.
EAP payload will not be validated only header will be validated.
The prefix in Idi payload, which decides the EAP-Type to be performed for authentication is out of scope for this feature. As there is no prefix digit assigned to it, it will be decided by mutual agreement between SecGW peer (like FAP) and AAA server.