某局点 MSR830-6BHI-WiNet PPPOE拨号不成功

客户使用我司MSR830作为出口设备，拨号上网。接口GigabitEthernet0/0连接光猫。

某局点客户反馈MSR830 PPPOE拨号不成功，获取不到地址

<H3C>dis ip interface brief

*down: administratively down

(s): spoofing  (l): loopback

Interface                Physical Protocol IP Address      Description

Aux0                     up       down     --              --

Dia0                     up       down     --              --

GE0/0                    up       up       --              Double_Line1

第一步 查看设备相关配置文件如下，确认配置没有问题

#

 dialer-group 1 rule ip permit

#

interface Dialer0

 ppp chap password cipher $c$3$z4TJCojD3Mq4K1RZSDdcwmniiO3C/iA1Sw==

 ppp chap user 0351xxxx

 ppp ipcp dns admit-any

 ppp ipcp dns request

 ppp pap local-user 0351xxxx password cipher $c$3$iArOorQ0ZNqgGykjAn86IyI77uzigWm4ig==

 dialer bundle enable

 dialer-group 1

 dialer timer idle 0

 dialer timer autodial 5

 ip address ppp-negotiate

 tcp mss 1024

 nat outbound

#

interface GigabitEthernet0/0

 port link-mode route

 combo enable copper

 pppoe-client dial-bundle-number 0

#

ip route-static 0.0.0.0 0 Dialer0

第二步 同一个拨号账号建议客户用PC拨号测试，可以拨号成功，换另一个终端也可以拨号成功，证明运营商没有绑定MAC地址

第三步

设备侧收集debug信息分析

Debug pppoe-client all

Debug ppp all

第一次debug信息

*Jan  1 00:06:32:908 2011 H3C PPP/7/PAP_PACKET_0:

  PPP Packet:

      Virtual-Access0 Output PAP(c023) Packet, PktLen 28

      State Initial, code Request(01), id 1, Len 24

      Host Len: 12  Name:035101236587

      Pwd  Len:  *  Pwd :******

*Jan  1 00:06:32:908 2011 H3C PPP/7/PAP_STATE_0:

  PPP State Change:

      Virtual-Access0 PAP: Initial --> SendRequest

%Jan  1 00:06:32:908 2011 H3C IFNET/5/LINK_UPDOWN: Line protocol state on the interface Virtual-Access0 changed to up.

*Jan  1 00:06:32:976 2011 H3C PPP/7/EXTERNAL_EVENT:

  PPP External Event:

      Virtual-Access0 deliver packet to user space success

*Jan  1 00:06:32:976 2011 H3C PPP/7/EXTERNAL_EVENT:

  PPP External Event:

      Virtual-Access0 deliver packet to user space success

*Jan  1 00:06:32:976 2011 H3C PPP/7/PAP_PACKET_0:

  PPP Packet:

      Virtual-Access0 Input PAP(c023) Packet, PktLen 28

      State SendRequest, code Nak(03), id 1, Len 24

      Msg  Len: 19  Msg :Authentication fail

*Jan  1 00:06:32:976 2011 H3C PPP/7/PAP_EVENT_0:

  PPP Event:

      Virtual-Access0 PAP Receive Nak Event

      State SendRequest

*Jan  1 00:06:32:976 2011 H3C PPP/7/PAP_STATE_0:

  PPP State Change:

      Virtual-Access0 PAP: SendRequest --> ClientFailed

*Jan  1 00:06:32:976 2011 H3C PPP/7/AUTH_ERROR_0:

  PPP Error:

      Virtual-Access0 PAP: Client authentication failed No. 1 !

*Jan  1 00:06:32:976 2011 H3C PPP/7/FSM_EVENT_0:

  PPP Event:

      Virtual-Access0 LCP Close Event

      State opened

*Jan  1 00:06:32:976 2011 H3C PPP/7/FSM_STATE_0:

  PPP State Change:

      Virtual-Access0 LCP: opened --> closing

*Jan  1 00:06:32:976 2011 H3C PPP/7/FSM_PACKET_0:

  PPP Packet:

      Virtual-Access0 Output LCP(c021) Packet, PktLen 8

      Current State closing, code TermReq(05), id 1, len 4

*Jan  1 00:06:32:976 2011 H3C PPP/7/PAP_EVENT_0:

      Virtual-Access0 deliver packet to user space success

第二次debug信息

*Jan  1 00:19:49:297 2011 H3C PPP/7/EXTERNAL_EVENT:

  PPP External Event:

      Virtual-Access0 deliver packet to user space success

*Jan  1 00:19:49:297 2011 H3C PPP/7/PAP_PACKET_0:

  PPP Packet:

      Virtual-Access0 Input PAP(c023) Packet, PktLen 28

      State SendRequest, code Nak(03), id 1, Len 24

      Msg  Len: 19  Msg :Authentication fail

*Jan  1 00:19:49:297 2011 H3C PPP/7/PAP_EVENT_0:

  PPP Event:

      Virtual-Access0 PAP Receive Nak Event

      State SendRequest

*Jan  1 00:19:49:297 2011 H3C PPP/7/PAP_STATE_0:

  PPP State Change:

      Virtual-Access0 PAP: SendRequest --> ClientFailed

*Jan  1 00:19:49:297 2011 H3C PPP/7/AUTH_ERROR_0:

  PPP Error:

      Virtual-Access0 PAP: Client authentication failed No. 1 !

*Jan  1 00:19:49:297 2011 H3C PPP/7/FSM_EVENT_0:

  PPP Event:

      Virtual-Access0 LCP Close Event

两次收集debug信息 都是客户端认证失败且报错信息一模一样，现场确认账号没有问题，最后还是建议现场工程师修改出口MAC地址测试，发现修改上行物理接口MAC地址之后可以拨号成功，由此分析运营商设备拉黑我司设备MAC地址。

修改上行物理接口MAC地址问题解决。