Ad-hoc networks are subject to malicious attacks given their wireless nature and high dynamicity. Various security issues have been raised so far, especially access control. In a previous work, we focused on a light and distributed AAA framework using a six message-AAA protocol, and an access token mechanism. In this article, we optimize this AAA protocol through the denition of two new AVPs. Besides to resist to spoong and replay attacks, we design a two-way protocol that allows destination nodes to check the access authorization validity of their neighbors