配置AAA 认证 (参考主中心的S7506E配置)
hwtacacs scheme acs
 primary authentication 101.192.1.52  //配置认证服务器地址
 secondary authentication 102.192.1.33  
 primary authorization 101.192.1.52  //配置授权服务器地址

   secondary authorization 102.192.1.33  
 primary accounting 101.192.1.52     //配置计费服务器地址
 secondary accounting 102.192.1.33  
 nas-ip 137.255.249.252    //LoopBack0地址
 key authentication cipher xxxxx //此认证密码问用户
 key authorization cipher xxxxx //此授权认证密码问用户
 key accounting cipher xxxxx //此计费密码问用户
 user-name-format without-domain
#
domain acs
 authentication default hwtacacs-scheme acs local
 authorization default hwtacacs-scheme acs local
 accounting default hwtacacs-scheme acs local
 access-limit disable
 state active
 idle-cut disable
 self-service-url disable

domain default enable acs