某局点S5130S-28P-EI 802.1X认证失败的经典案例

不涉及

现有环境中我方H3C交换机5130S-28P-EI与第三方认证平台进行认证对接，在对接后发现客户端总是认证失败，客户端使用的是该第三方认证平台的客户端。

客户端有一瞬间显示认证成功，但是立马就显示为认证失败，进入了guest vlan，guest vlan功能成功。在交换机上显示有上线成功而后认证失败的报文提示，如下：

            %Jan 25 19:43:27:653 2013 H3C DOT1X/6/DOT1X_LOGIN_SUCC: -IfName=GigabitEthernet1/0/1-MACAddr=4439-c433-b3e8-VLANID=107-Username=20186087; User passed 802.1X authentication and came online.

%Jan 25 19:43:27:672 2013 H3C DOT1X/6/DOT1X_LOGOFF: -IfName=GigabitEthernet1/0/1-MACAddr=4439-c433-b3e8-VLANID=107-Username=20186087-ErrCode=0; 802.1X user was logged off.

交换机开debug，抓取认证时的认证报文，发现在认证过程中有如下一个报文：

*Jan 25 20:46:27:507 2013 H3C DOT1X/7/EVENT: PAE is in Authenticated state: UserMAC=4439-c433-b3e8, VLANID=107, Interface=GigabitEthernet1/0/1.

*Jan 25 20:46:27:507 2013 H3C DOT1X/7/EVENT: Sent authorization request: UserMAC=4439-c433-b3e8, VLANID=107, Interface=GigabitEthernet1/0/1.

*Jan 25 20:46:27:507 2013 H3C RADIUS/7/EVENT:

PAM_RADIUS: Processing RADIUS authorization.

*Jan 25 20:46:27:507 2013 H3C RADIUS/7/ERROR:

PAM_RADIUS: Authorization scheme is different from authentication scheme.

*Jan 25 20:46:27:511 2013 H3C DOT1X/7/EVENT: AAA processed authorization request: Result= Failure, UserMAC=4439-c433-b3e8, VLANID=107, Interface=GigabitEthernet1/0/1.

*Jan 25 20:46:27:512 2013 H3C DOT1X/7/PACKET:

Transmitted a packet on interface GigabitEthernet1/0/1.

报文提示AAA授权失败

后面将domain中的授权和计费这个两个参数改为none进行测试，

domain leagsoft

 authentication lan-access radius-scheme uniaccess

 authorization lan-access none

 accounting lan-access none

发现客户端能认证成功，但是所在端口没有获取导下发的vlan号，从而进入了vlan 1 默认vlan号。

抓包发现，授权下发字段为“.”：

第三方认证平台更改了认证平台后台的字符串格式vlan格式，然后重启了认证模块后，授权vlan号成功下发。