I am looking for a reading material on TACACS+. I searched the net, specially cisco, cisco press. but not able to find which will help me in my understanding of protocol. There are docs which talks abt configutaion but that is not what I am looking for. I could find a draft though draft-grant-tacacs( expired in '98 ).. and the closest I got with TACACS+ comparison with RADIUS.
Could someone help me in this case.. and point me to the right links or books.
Thanks a lot. Sachin.