配置 Cisco IOS 软件与 Windows 2000，使用 Microsoft IAS 实现 PPTP

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已更新: 2004 年 9 月 6 日
文档 ID:3885

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简介

在Cisco 7100和7200路由器平台上，点对点隧道协议(PPTP)支持已添加到Cisco IOS®软件版本12.0.5.XE5中。Cisco IOS软件版本12.1.5.T增加了对更多平台的支持。

请求注解(RFC)2637描述PPTP。根据此RFC，PPTP接入集中器(PAC)是客户端（即PC或呼叫方），而PPTP网络服务器(PNS)是服务器（即，路由器或被呼叫的设备）。

先决条件

要求

本文档假设您已使用本地Microsoft质询握手身份验证协议(MS-CHAP)V1身份验证（或者需要MS-CHAP V1的Microsoft点对点加密[MPPE]）设置与路由器的PPTP连接，并且这些连接已在运行。MPPE加密支持需要远程身份验证拨入用户服务(RADIUS);TACACS+适用于身份验证，但不适用于MPPE密钥。

使用的组件

本文档中的信息基于以下软件和硬件版本。

  • 在具有 Active Directory 的 Microsoft 2000 Advanced Server 上安装的 Microsoft IAS 可选组件.

  • Cisco 3600 路由器.

  • 思科IOS软件版本c3640-io3s56i-mz.121-5.T。

此配置使用安装在Windows 2000高级服务器上的Microsoft IAS作为RADIUS服务器。

本文档中的信息都是基于特定实验室环境中的设备创建的。本文档中使用的所有设备最初均采用原始（默认）配置。如果您是在真实网络上操作，请确保您在使用任何命令前已经了解其潜在影响。

规则

有关文档规则的详细信息，请参阅 Cisco 技术提示规则。

背景理论

此示例配置演示如何设置PC以连接到路由器（地址为10.200.20.2），然后路由器向Microsoft的Internet身份验证服务器(IAS)（地址为10.200.20.245）验证用户身份，再允许用户进入网络。PPTP支持适用于Windows的思科安全访问控制服务器(ACS)版本2.5。但是，由于Cisco Bug ID CSCds92266，它可能无法与路由器配合使用。如果您使用的是Cisco Secure，我们建议使用Cisco Secure V2.6或更高版本。Cisco Secure UNIX不支持MPPE。另外两个支持MPPE的RADIUS应用是Microsoft RADIUS和Funk RADIUS。

配置

本部分提供有关如何配置本文档所述功能的信息。

注意：要查找有关本文档中使用的命令的其他信息，请使用IOS命令查找工具

网络图

本文档使用下图所示的网络设置。

pptp_3885.gif

拨号客户端的IP池：

  • 网关路由器：192.168.1.2 ~ 192.168.1.254

  • LNS:172.16.10.1 ~ 172.16.10.10

虽然上述设置使用拨号客户端通过拨号连接到互联网服务提供商(ISP)路由器，但您可以通过任何介质（如LAN）连接PC和网关路由器。

为 Microsoft IAS 配置 Windows 2000 Advanced Server

本节介绍如何为Microsoft IAS配置Windows 2000高级服务器：

  1. 确保安装了 Microsoft IAS。要安装Microsoft IAS，请以管理员身份登录。在网络服务下，确保清除所有复选框。选中Internet Authentication Server复选框，然后单击OK。

  2. 在“Windows 组件向导”中，单击下一步。如果出现提示，请插入 Windows 2000 CD。

  3. 复制所需文件后，单击“完成”，然后关闭所有窗口。您不需要重新启动。

配置 RADIUS 客户端

本节显示配置RADIUS客户端的步骤：

  1. 从管理工具中，打开“Internet 身份验证服务器控制台”，然后单击“客户端”。

  2. 在Friendly Name框中，键入网络接入服务器(NAS)的IP地址。

  3. 单击“Use this IP(使用此IP)”选项。

  4. 在“客户端 — 供应商”下拉列表框中，确保选择了RADIUS标准选项。

  5. 在“共享密钥”和“确认共享密钥”框中，键入密码，然后单击完成。

  6. 在控制台树中，右键单击“Internet Authentication Service(Internet身份验证服务)”，然后单击“Start（开始）”。

  7. 关闭控制台。

配置 IAS 上的用户

与Cisco Secure不同，Windows 2000 RADIUS用户数据库与Windows用户数据库紧密绑定。如果Windows 2000服务器上安装了Active Directory，请从Active Directory用户和计算机创建新的拨号用户。如果未安装Active Directory，请使用管理工具中的本地用户和组创建新用户。

在Active Directory中配置用户

本节显示在Active Directory中配置用户的步骤：

  1. 在 Active Directory 用户和计算机控制台中，展开您的域。右键单击用户。滚动以选择新用户。创建一个名为 tac 的新用户。

  2. 在“密码”和“确认密码”对话框中键入密码。

  3. 清除“用户必须在下次登录时更改密码”字段并单击“下一步”。

  4. 打开“用户TAC属性”框。切换至拨入选项卡。在远程访问权限（拨入或 VPN）下，单击“允许访问”，然后单击“确定”。

在没有安装活动目录的情况下配置用户

本节显示在未安装Active Directory时配置用户的步骤：

  1. 在“管理工具”部分，单击“计算机管理”。展开计算机管理控制台，然后单击“本地用户和组”。右键单击“用户”滚动条以选择“新用户”。创建一个名为 tac 的新用户。

  2. 在“密码”和“确认密码”对话框中键入密码。

  3. 清除用户下次登录时须更改密码选项，然后单击“下一步”。

  4. 打开名为tac的“属性”框的新用户。切换至拨入选项卡。在远程访问权限（拨入或 VPN）下，单击“允许访问”，然后单击“确定”。

将远程访问策略应用于 Windows 用户

本节显示将远程访问策略应用到Windows用户的步骤：

  1. 从管理工具中，打开Internet身份验证服务器控制台并单击远程访问策略。

  2. 单击指定要匹配的条件上的添加按钮，然后添加服务类型。选择可用类型为Framed，并将其添加到Selected Types列表。按确定。

  3. 单击“指定匹配条件”上的添加按钮，然后添加“帧协议”。选择可用类型ppp，并将其添加到“选定类型”列表。按确定。

  4. 单击“指定匹配条件”上的添加按钮，然后添加“Windows 组”，以添加用户所属的 Windows 组。选择组并将其添加到“选定类型”并按确定。

  5. 在“Allow Access if Dial-in Permission is Enabled”属性中，选择“Grant remote Access permission”。

  6. 关闭控制台。

为 PPTP 配置 Windows 2000 客户端

以下部分显示为PPTP配置Windows 2000客户端的步骤：

  1. 从“开始”菜单中，选择“设置”，然后选择：

    • 控制面板和网络和拨号连接，或

    • 然后选择“Network and Dial-up Connections(网络和拨号连接)” ，再选择“Make New Connection（新建连接）”。

    使用向导创建名为PPTP的连接。此连接通过 Internet 连接到专用网络。您还需要指定PPTP网络服务器(PNS)IP地址或名称。

  2. 新连接显示在“控制面板”下的网络和拨号连接窗口中。

    在此处，单击鼠标右键编辑其属性。在“网络”选项卡下，确保“我正在呼叫的服务器类型”字段设置为PPTP。如果计划通过本地池或动态主机配置协议(DHCP)从网关向此客户端分配动态内部地址，请选择TCP/IP协议，并确保将客户端配置为自动获取IP地址。您还可以自动发布DNS信息。

    使用Advanced按钮可以定义静态Windows Internet命名服务(WINS)和DNS信息。

    通过Options选项卡，可以关闭IPSec或为连接分配不同的策略。

  3. 在Security选项卡下，可以定义用户身份验证参数。例如，PAP、CHAP或MS-CHAP或Windows域登录。配置连接后，您可以双击该连接以显示登录屏幕，然后进行连接。

配置

使用以下路由器配置，即使RADIUS服务器不可用，用户也能够使用用户名tac和密码admin进行连接（当Microsoft IAS尚未配置时，这是可能的）。 以下示例配置概述了无IPSec的L2tp所需的命令。

安吉拉 
angela#show running-config
Building configuration...
Current configuration : 1606 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname angela
!
logging rate-limit console 10 except errors

!---Enable AAA services here

aaa new-model
aaa authentication login default group radius local
aaa authentication login console none
aaa authentication ppp default group radius local
aaa authorization network default group radius local
enable password
!
username tac password 0 admin
memory-size iomem 30
ip subnet-zero
!
!
no ip finger
no ip domain-lookup
ip host rund 172.17.247.195
!
ip audit notify log
ip audit po max-events 100
ip address-pool local

!---Enable VPN/Virtual Private Dialup Network (VPDN) services !---and define groups and their respective parameters.

vpdn enable
no vpdn logging
!
!
vpdn-group PPTP_WIN2KClient

!---Default PPTP VPDN group !---Allow the router to accept incoming Requests

accept-dialin
protocol pptp
virtual-template 1
!
!
!
call rsvp-sync
!
!
!
!
!
!
!
controller E1 2/0
!
!
interface Loopback0
ip address 172.16.10.100 255.255.255.0
!
interface Ethernet0/0
ip address 10.200.20.2 255.255.255.0
half-duplex
!
interface Virtual-Template1
ip unnumbered Loopback0
peer default ip address pool default

!--- The following encryption command is optional !--- and could be added later.

ppp encrypt mppe 40
ppp authentication ms-chap
!
ip local pool default 172.16.10.1 172.16.10.10
ip classless
ip route 0.0.0.0 0.0.0.0 10.200.20.1
ip route 192.168.1.0 255.255.255.0 10.200.20.250
no ip http server
!
radius-server host 10.200.20.245 auth-port 1645 acct-port 1646
radius-server retransmit 3
radius-server key cisco
!
dial-peer cor custom
!
!
!
!
!
line con 0
exec-timeout 0 0
login authentication console
transport input none
line 33 50
modem InOut
line aux 0
line vty 0 4
exec-timeout 0 0
password 
!
end

angela#show debug
General OS:
AAA Authentication debugging is on
AAA Authorization debugging is on
PPP:
MPPE Events debugging is on
PPP protocol negotiation debugging is on
VPN:
L2X protocol events debugging is on
L2X protocol errors debugging is on
VPDN events debugging is on
VPDN errors debugging is on
Radius protocol debugging is on

angela#
*Mar  7 04:21:07.719: L2X: TCP connect reqd from 0.0.0.0:2000
*Mar  7 04:21:07.991: Tnl 29 PPTP: Tunnel created; peer initiated
*Mar  7 04:21:08.207: Tnl 29 PPTP: SCCRQ-ok -> 
state change wt-sccrq to estabd
*Mar  7 04:21:09.267: VPDN: Session vaccess task running
*Mar  7 04:21:09.267: Vi1 VPDN: Virtual interface created
*Mar  7 04:21:09.267: Vi1 VPDN: Clone from Vtemplate 1
*Mar  7 04:21:09.343: Tnl/Cl 29/29 PPTP: VAccess created
*Mar  7 04:21:09.343: Vi1 Tnl/Cl 29/29 PPTP: vacc-ok -> 
#state change wt-vacc to estabd
*Mar  7 04:21:09.343: Vi1 VPDN: Bind interface direction=2
*Mar  7 04:21:09.347: %LINK-3-UPDOWN: Interface Virtual-Access1, changed
state to up
*Mar  7 04:21:09.347: Vi1 PPP: Using set call direction
*Mar  7 04:21:09.347: Vi1 PPP: Treating connection as a callin
*Mar  7 04:21:09.347: Vi1 PPP: Phase is ESTABLISHING, 
Passive Open [0 sess, 0 load]
*Mar  7 04:21:09.347: Vi1 LCP: State is Listen
*Mar  7 04:21:10.347: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Virtual-Access1, changed state to up
*Mar  7 04:21:11.347: Vi1 LCP: TIMEout: State Listen
*Mar  7 04:21:11.347: Vi1 AAA/AUTHOR/FSM: (0): LCP succeeds trivially
*Mar  7 04:21:11.347: Vi1 LCP: O CONFREQ [Listen] id 7 len 15
*Mar  7 04:21:11.347: Vi1 LCP:    AuthProto MS-CHAP (0x0305C22380)
*Mar  7 04:21:11.347: Vi1 LCP:    MagicNumber 0x3050EB1F (0x05063050EB1F)
*Mar  7 04:21:11.635: Vi1 LCP: I CONFACK [REQsent] id 7 len 15
*Mar  7 04:21:11.635: Vi1 LCP:    AuthProto MS-CHAP (0x0305C22380)
*Mar  7 04:21:11.635: Vi1 LCP:    MagicNumber 0x3050EB1F (0x05063050EB1F)
*Mar  7 04:21:13.327: Vi1 LCP: I CONFREQ [ACKrcvd] id 1 len 44
*Mar  7 04:21:13.327: Vi1 LCP:    MagicNumber 0x35BE1CB0 (0x050635BE1CB0)
*Mar  7 04:21:13.327: Vi1 LCP:    PFC (0x0702)
*Mar  7 04:21:13.327: Vi1 LCP:    ACFC (0x0802)
*Mar  7 04:21:13.327: Vi1 LCP:    Callback 6  (0x0D0306)
*Mar  7 04:21:13.327: Vi1 LCP:    MRRU 1614 (0x1104064E)
*Mar  7 04:21:13.327: Vi1 LCP:    EndpointDisc 1 Local
*Mar  7 04:21:13.327: Vi1 LCP:     (0x1317016AC616B006CC4281A1CA941E39)
*Mar  7 04:21:13.331: Vi1 LCP:     (0xB9182600000008)
*Mar  7 04:21:13.331: Vi1 LCP: O CONFREJ [ACKrcvd] id 1 len 34
*Mar  7 04:21:13.331: Vi1 LCP:    Callback 6  (0x0D0306)
*Mar  7 04:21:13.331: Vi1 LCP:    MRRU 1614 (0x1104064E)
*Mar  7 04:21:13.331: Vi1 LCP:    EndpointDisc 1 Local
*Mar  7 04:21:13.331: Vi1 LCP:     (0x1317016AC616B006CC4281A1CA941E39)
*Mar  7 04:21:13.331: Vi1 LCP:     (0xB9182600000008)
*Mar  7 04:21:13.347: Vi1 LCP: TIMEout: State ACKrcvd
*Mar  7 04:21:13.347: Vi1 LCP: O CONFREQ [ACKrcvd] id 8 len 15
*Mar  7 04:21:13.347: Vi1 LCP:    AuthProto MS-CHAP (0x0305C22380)
*Mar  7 04:21:13.347: Vi1 LCP:    MagicNumber 0x3050EB1F (0x05063050EB1F)
*Mar  7 04:21:13.647: Vi1 LCP: I CONFREQ [REQsent] id 2 len 14
*Mar  7 04:21:13.651: Vi1 LCP:    MagicNumber 0x35BE1CB0 (0x050635BE1CB0)
*Mar  7 04:21:13.651: Vi1 LCP:    PFC (0x0702)
*Mar  7 04:21:13.651: Vi1 LCP:    ACFC (0x0802)
*Mar  7 04:21:13.651: Vi1 LCP: O CONFACK [REQsent] id 2 len 14
*Mar  7 04:21:13.651: Vi1 LCP:    MagicNumber 0x35BE1CB0 (0x050635BE1CB0)
*Mar  7 04:21:13.651: Vi1 LCP:    PFC (0x0702)
*Mar  7 04:21:13.651: Vi1 LCP:    ACFC (0x0802)
*Mar  7 04:21:13.723: Vi1 LCP: I CONFACK [ACKsent] id 8 len 15
*Mar  7 04:21:13.723: Vi1 LCP:    AuthProto MS-CHAP (0x0305C22380)
*Mar  7 04:21:13.723: Vi1 LCP:    MagicNumber 0x3050EB1F (0x05063050EB1F)
*Mar  7 04:21:13.723: Vi1 LCP: State is Open
*Mar  7 04:21:13.723: Vi1 PPP: Phase is AUTHENTICATING, 
by this end [0 sess, 0 load]
*Mar  7 04:21:13.723: Vi1 MS-CHAP: O CHALLENGE id 20 len 21 from "angela "
*Mar  7 04:21:14.035: Vi1 LCP: I IDENTIFY [Open] id 3 len 18 magic
0x35BE1CB0 MSRASV5.00
*Mar  7 04:21:14.099: Vi1 LCP: I IDENTIFY [Open] id 4 len 24 magic
0x35BE1CB0 MSRAS-1-RSHANMUG
*Mar  7 04:21:14.223: Vi1 MS-CHAP: I RESPONSE id 20 len 57 from "tac"
*Mar  7 04:21:14.223: AAA: parse name=Virtual-Access1 idb type=21 tty=-1
*Mar  7 04:21:14.223: AAA: name=Virtual-Access1 flags=0x11 type=5 shelf=0
slot=0 adapter=0 port=1 channel=0
*Mar  7 04:21:14.223: AAA/MEMORY: create_user (0x62740E7C) user='tac' ruser='' 
port='Virtual-Access1' rem_addr='' authen_type=MSCHAP service=PPP priv=1
*Mar  7 04:21:14.223: AAA/AUTHEN/START (2474402925): port='Virtual-Access1'
list='' action=LOGIN service=PPP
*Mar  7 04:21:14.223: AAA/AUTHEN/START (2474402925): using "default" list
*Mar  7 04:21:14.223: AAA/AUTHEN/START (2474402925): Method=radius (radius)
*Mar  7 04:21:14.223: RADIUS: ustruct sharecount=0
*Mar  7 04:21:14.223: RADIUS: Initial Transmit Virtual-Access1 id 116
10.200.20.245:1645, Access-Request, len 129
*Mar  7 04:21:14.227:         Attribute 4 6 0AC81402
*Mar  7 04:21:14.227:         Attribute 5 6 00000001
*Mar  7 04:21:14.227:         Attribute 61 6 00000005
*Mar  7 04:21:14.227:         Attribute 1 5 7461631A
*Mar  7 04:21:14.227:         Attribute 26 16 000001370B0AFD11
*Mar  7 04:21:14.227:         Attribute 26 58 0000013701341401
*Mar  7 04:21:14.227:         Attribute 6 6 00000002
*Mar  7 04:21:14.227:         Attribute 7 6 00000001
*Mar  7 04:21:14.239: RADIUS: Received from id 116 10.200.20.245:1645,
Access-Accept, len 116
*Mar  7 04:21:14.239:         Attribute 7 6 00000001
*Mar  7 04:21:14.239:         Attribute 6 6 00000002
*Mar  7 04:21:14.239:         Attribute 25 32 64080750
*Mar  7 04:21:14.239:         Attribute 26 40 000001370C223440
*Mar  7 04:21:14.239:         Attribute 26 12 000001370A06144E
*Mar  7 04:21:14.239: AAA/AUTHEN (2474402925): status = PASS
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP: Authorize LCP
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP (2434357606):
Port='Virtual-Access1' list='' service=NET
*Mar  7 04:21:14.243: AAA/AUTHOR/LCP: Vi1 (2434357606) user='tac'
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP (2434357606): send AV service=ppp
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP (2434357606): send AV protocol=lcp
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP (2434357606): found list "default"
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP (2434357606): Method=radius
(radius)
*Mar  7 04:21:14.243: RADIUS: unrecognized Microsoft VSA type 10
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR (2434357606): Post authorization
status = PASS_REPL
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP: Processing AV service=ppp
*Mar  7 04:21:14.243: Vi1 AAA/AUTHOR/LCP: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#11Z1`1k1}111
*Mar  7 04:21:14.243: Vi1 MS-CHAP: O SUCCESS id 20 len 4
*Mar  7 04:21:14.243: Vi1 PPP: Phase is UP [0 sess, 0 load]
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM: (0): Can we start IPCP?
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM (1553311212):
Port='Virtual-Access1' list='' service=NET
*Mar  7 04:21:14.247: AAA/AUTHOR/FSM: Vi1 (1553311212) user='tac'
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM (1553311212): send AV service=ppp
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM (1553311212): send AV protocol=ip
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM (1553311212): found list "default"
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM (1553311212): Method=radius
(radius)
*Mar  7 04:21:14.247: RADIUS: unrecognized Microsoft VSA type 10
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR (1553311212): Post authorization
status = PASS_REPL
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM: We can start IPCP
*Mar  7 04:21:14.247: Vi1 IPCP: O CONFREQ [Not negotiated] id 4 len 10
*Mar  7 04:21:14.247: Vi1 IPCP:    Address 172.16.10.100 (0x0306AC100A64)
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM: (0): Can we start CCP?
*Mar  7 04:21:14.247: Vi1 AAA/AUTHOR/FSM (3663845178):
Port='Virtual-Access1' list='' service=NET
*Mar  7 04:21:14.251: AAA/AUTHOR/FSM: Vi1 (3663845178) user='tac'
*Mar  7 04:21:14.251: Vi1 AAA/AUTHOR/FSM (3663845178): send AV service=ppp
*Mar  7 04:21:14.251: Vi1 AAA/AUTHOR/FSM (3663845178): send AV protocol=ccp
*Mar  7 04:21:14.251: Vi1 AAA/AUTHOR/FSM (3663845178): found list "default"
*Mar  7 04:21:14.251: Vi1 AAA/AUTHOR/FSM (3663845178): Method=radius
(radius)
*Mar  7 04:21:14.251: RADIUS: unrecognized Microsoft VSA type 10
*Mar  7 04:21:14.251: Vi1 AAA/AUTHOR (3663845178): Post authorization
status = PASS_REPL
*Mar  7 04:21:14.251: Vi1 AAA/AUTHOR/FSM: We can start CCP
*Mar  7 04:21:14.251: Vi1 CCP: O CONFREQ [Closed] id 3 len 10
*Mar  7 04:21:14.251: Vi1 CCP:    MS-PPC supported bits 0x01000020
(0x120601000020)
*Mar  7 04:21:14.523: Vi1 CCP: I CONFREQ [REQsent] id 5 len 10
*Mar  7 04:21:14.523: Vi1 CCP:    MS-PPC supported bits 0x010000F1
(0x1206010000F1)
*Mar  7 04:21:14.523: Vi1 MPPE: don't understand all options, NAK
*Mar  7 04:21:14.523: Vi1 AAA/AUTHOR/FSM: 
Check for unauthorized mandatory AV's
*Mar  7 04:21:14.523: Vi1 AAA/AUTHOR/FSM: Processing AV service=ppp
*Mar  7 04:21:14.523: Vi1 AAA/AUTHOR/FSM: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#11Z1`1k1}111
*Mar  7 04:21:14.523: Vi1 AAA/AUTHOR/FSM: Succeeded
*Mar  7 04:21:14.523: Vi1 CCP: O CONFNAK [REQsent] id 5 len 10
*Mar  7 04:21:14.523: Vi1 CCP:    MS-PPC supported bits 0x01000020
(0x120601000020)
*Mar  7 04:21:14.607: Vi1 IPCP: I CONFREQ [REQsent] id 6 len 34
*Mar  7 04:21:14.607: Vi1 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  7 04:21:14.607: Vi1 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  7 04:21:14.607: Vi1 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  7 04:21:14.607: Vi1 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  7 04:21:14.607: Vi1 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  7 04:21:14.607: Vi1 AAA/AUTHOR/IPCP: Start.  
Her address 0.0.0.0, we want 0.0.0.0
*Mar  7 04:21:14.607: Vi1 AAA/AUTHOR/IPCP: Processing AV service=ppp
*Mar  7 04:21:14.607: Vi1 AAA/AUTHOR/IPCP: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#11Z1`1k1}111
*Mar  7 04:21:14.607: Vi1 AAA/AUTHOR/IPCP: Authorization succeeded
*Mar  7 04:21:14.607: Vi1 AAA/AUTHOR/IPCP: Done.  
Her address 0.0.0.0, we want 0.0.0.0
*Mar  7 04:21:14.607: Vi1 IPCP: Pool returned 172.16.10.1
*Mar  7 04:21:14.607: Vi1 IPCP: O CONFREJ [REQsent] id 6 len 28
*Mar  7 04:21:14.607: Vi1 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  7 04:21:14.611: Vi1 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  7 04:21:14.611: Vi1 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  7 04:21:14.611: Vi1 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  7 04:21:14.675: Vi1 IPCP: I CONFACK [REQsent] id 4 len 10
*Mar  7 04:21:14.675: Vi1 IPCP:    Address 172.16.10.100 (0x0306AC100A64)
*Mar  7 04:21:14.731: Vi1 CCP: I CONFACK [REQsent] id 3 len 10
*Mar  7 04:21:14.731: Vi1 CCP:    MS-PPC supported bits 0x01000020
(0x120601000020)
*Mar  7 04:21:14.939: Vi1 CCP: I CONFREQ [ACKrcvd] id 7 len 10
*Mar  7 04:21:14.939: Vi1 CCP:    MS-PPC supported bits 0x01000020
(0x120601000020)
*Mar  7 04:21:14.939: Vi1 AAA/AUTHOR/FSM: 
Check for unauthorized mandatory AV's
*Mar  7 04:21:14.939: Vi1 AAA/AUTHOR/FSM: Processing AV service=ppp
*Mar  7 04:21:14.939: Vi1 AAA/AUTHOR/FSM: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#11Z1`1k1}111
*Mar  7 04:21:14.939: Vi1 AAA/AUTHOR/FSM: Succeeded
*Mar  7 04:21:14.939: Vi1 CCP: O CONFACK [ACKrcvd] id 7 len 10
*Mar  7 04:21:14.939: Vi1 CCP:    MS-PPC supported bits 0x01000020
(0x120601000020)
*Mar  7 04:21:14.943: Vi1 CCP: State is Open
*Mar  7 04:21:14.943: Vi1 MPPE: Generate keys using RADIUS data
*Mar  7 04:21:14.943: Vi1 MPPE: Initialize keys
*Mar  7 04:21:14.943: Vi1 MPPE: [40 bit encryption]  [stateless mode]
*Mar  7 04:21:14.991: Vi1 IPCP: I CONFREQ [ACKrcvd] id 8 len 10
*Mar  7 04:21:14.991: Vi1 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  7 04:21:14.991: Vi1 AAA/AUTHOR/IPCP: Start.  
Her address 0.0.0.0, we want 172.16.10.1
*Mar  7 04:21:14.991: Vi1 AAA/AUTHOR/IPCP: Processing AV service=ppp
*Mar  7 04:21:14.995: Vi1 AAA/AUTHOR/IPCP: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#11Z1`1k1}111
*Mar  7 04:21:14.995: Vi1 AAA/AUTHOR/IPCP: Authorization succeeded
*Mar  7 04:21:14.995: Vi1 AAA/AUTHOR/IPCP: Done.  
Her address 0.0.0.0, we want 172.16.10.1
*Mar  7 04:21:14.995: Vi1 IPCP: O CONFNAK [ACKrcvd] id 8 len 10
*Mar  7 04:21:14.995: Vi1 IPCP:    Address 172.16.10.1 (0x0306AC100A01)
*Mar  7 04:21:15.263: Vi1 IPCP: I CONFREQ [ACKrcvd] id 9 len 10
*Mar  7 04:21:15.263: Vi1 IPCP:    Address 172.16.10.1 (0x0306AC100A01)
*Mar  7 04:21:15.263: Vi1 AAA/AUTHOR/IPCP: Start.  
Her address 172.16.10.1, we want 172.16.10.1
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP (2052567766):
Port='Virtual-Access1' list='' service=NET
*Mar  7 04:21:15.267: AAA/AUTHOR/IPCP: Vi1 (2052567766) user='tac'
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP (2052567766): send AV service=ppp
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP (2052567766): send AV protocol=ip
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP (2052567766): send AV
addr*172.16.10.1
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP (2052567766): found list
"default"
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP (2052567766): Method=radius
(radius)
*Mar  7 04:21:15.267: RADIUS: unrecognized Microsoft VSA type 10
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR (2052567766): Post authorization
status = PASS_REPL
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP: Reject 172.16.10.1, using
172.16.10.1
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP: Processing AV service=ppp
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#11Z1`1k1}111
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP: Processing AV addr*172.16.10.1
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP: Authorization succeeded
*Mar  7 04:21:15.267: Vi1 AAA/AUTHOR/IPCP: Done.  
Her address 172.16.10.1, we want 172.16.10.1
*Mar  7 04:21:15.271: Vi1 IPCP: O CONFACK [ACKrcvd] id 9 len 10
*Mar  7 04:21:15.271: Vi1 IPCP:    Address 172.16.10.1 (0x0306AC100A01)
*Mar  7 04:21:15.271: Vi1 IPCP: State is Open
*Mar  7 04:21:15.271: Vi1 IPCP: Install route to 172.16.10.1
*Mar  7 04:21:22.571: Vi1 LCP: I ECHOREP [Open] id 1 len 12 magic
0x35BE1CB0
*Mar  7 04:21:22.571: Vi1 LCP: Received id 1, sent id 1, line up
*Mar  7 04:21:30.387: Vi1 LCP: I ECHOREP [Open] id 2 len 12 magic
0x35BE1CB0
*Mar  7 04:21:30.387: Vi1 LCP: Received id 2, sent id 2, line up

angela#show vpdn
%No active L2TP tunnels
%No active L2F tunnels
PPTP Tunnel and Session Information Total tunnels 1 sessions 1
LocID Remote Name     State    Remote Address  Port  Sessions
29                    estabd   192.168.1.47    2000  1
LocID RemID TunID Intf    Username      State   Last Chg
29    32768 29    Vi1     tac           estabd  00:00:31
%No active PPPoE tunnels
angela#

*Mar  7 04:21:40.471: Vi1 LCP: I ECHOREP [Open] id 3 len 12 magic
0x35BE1CB0
*Mar  7 04:21:40.471: Vi1 LCP: Received id 3, sent id 3, line up
*Mar  7 04:21:49.887: Vi1 LCP: I ECHOREP [Open] id 4 len 12 magic
0x35BE1CB0
*Mar  7 04:21:49.887: Vi1 LCP: Received id 4, sent id 4, line up

angela#ping 192.168.1.47
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.47, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 484/584/732 ms

*Mar  7 04:21:59.855: Vi1 LCP: I ECHOREP [Open] id 5 len 12 magic
0x35BE1CB0
*Mar  7 04:21:59.859: Vi1 LCP: Received id 5, sent id 5, line up
*Mar  7 04:22:06.323: Tnl 29 PPTP: timeout -> state change estabd to estabd
*Mar  7 04:22:08.111: Tnl 29 PPTP: EchoRQ -> state change estabd to estabd
*Mar  7 04:22:08.111: Tnl 29 PPTP: EchoRQ -> echo state change Idle to Idle
*Mar  7 04:22:09.879: Vi1 LCP: I ECHOREP [Open] id 6 len 12 magic
0x35BE1CB0
*Mar  7 04:22:09.879: Vi1 LCP: Received id 6, sent id 6, line up

angela#ping 172.16.10.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.10.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 584/707/1084 ms

*Mar  7 04:22:39.863: Vi1 LCP: I ECHOREP [Open] id 7 len 12 magic
0x35BE1CB0
*Mar  7 04:22:39.863: Vi1 LCP: Received id 7, sent id 7, line up

angela#clear vpdn tunnel pptp tac
Could not find specified tunnel

angela#show vpdn tunnel
%No active L2TP tunnels
%No active L2F tunnels
PPTP Tunnel Information Total tunnels 1 sessions 1
LocID Remote Name     State    Remote Address  Port  Sessions
29                    estabd   192.168.1.47    2000  1
%No active PPPoE tunnels

angela#
*Mar  7 04:23:05.347: Tnl 29 PPTP: timeout -> state change estabd to estabd

angela#
*Mar  7 04:23:08.019: Tnl 29 PPTP: EchoRQ -> state change estabd to estabd
*Mar  7 04:23:08.019: Tnl 29 PPTP: EchoRQ -> echo state change Idle to Idle

angela#
*Mar  7 04:23:09.887: Vi1 LCP: I ECHOREP [Open] id 10 len 12 magic 0x35BE1CB0
*Mar  7 04:23:09.887: Vi1 LCP: Received id 10, sent id 10, line up

验证

本部分所提供的信息可用于确认您的配置是否正常工作。

输出解释器工具支持某些 show 命令（只限于注册用户），通过它可以查看 show 命令输出的分析。

  • show vpdn — 显示有关VPDN中活动的第2级转发(L2F)协议隧道和消息标识符的信息。

您还可以使用show vpdn ?查看其他特定于VPDN的show命令。

故障排除

本部分提供的信息可用于对配置进行故障排除。

故障排除命令

输出解释器工具支持某些 show 命令（只限于注册用户），通过它可以查看 show 命令输出的分析。

注意：在发出debug命令之前，请参阅有关Debug命令的重要信息。

  • debug aaa authentication — 显示有关AAA/TACACS+身份验证的信息。

  • debug aaa authorization -显示关于AAA/TACACS+特权的信息。

  • debug ppp negotiation - 显示在 PPP 启动期间传输的 PPP 数据包，在此启动期间将协商 PPP 选项。

  • debug ppp authentication — 显示身份验证协议消息，包括质询身份验证协议(CHAP)数据包交换和密码身份验证协议(PAP)交换。

  • debug radius — 显示与RADIUS关联的详细调试信息。如果身份验证有效，但MPPE加密有问题，请使用以下debug命令之一。

  • debug ppp mppe packet — 显示所有传入的传出MPPE流量。

  • debug ppp mppe event — 显示关键MPPE事件。

  • debug ppp mppe detailed — 显示详细的MPPE信息。

  • debug vpdn l2x-packets — 显示有关L2F协议报头和状态的消息。

  • debug vpdn events — 显示有关正常隧道建立或关闭过程中的事件的消息。

  • debug vpdn errors — 显示阻止建立隧道的错误或导致已建立隧道关闭的错误。

  • debug vpdn packets — 显示交换的每个协议数据包。此选项可能会导致出现大量的调试消息，因此通常只应在具有单个活动会话的调试机箱中使用。

Split Tunneling

假设网关路由器是ISP路由器。当PC上启用PPTP隧道时，PPTP路由的度量比之前的默认值高，因此我们会失去Internet连接。要解决此问题，请修改Microsoft路由以删除默认路由并重新安装默认路由(这需要知道PPTP客户端已分配的IP地址；对于当前示例，这是172.16.10.1): 

route delete 0.0.0.0
route add 0.0.0.0 mask 0.0.0.0 192.168.1.47 metric 1
route add 172.16.10.1 mask 255.255.255.0 192.168.1.47 metric 1

如果客户端没有进行加密配置

在用于PPTP会话的拨号连接的Security选项卡下，可以定义用户身份验证参数。例如，这可以是PAP、CHAP、MS-CHAP或Windows域登录。如果在VPN连接的Properties部分选择了No Encryption Allowed（如果服务器需要加密，则会断开连接）选项，则客户端上可能会出现PPTP错误消息： 

Registering your computer on the network..
Error 734:  The PPP link control protocol was terminated.
Debugs on the  router:
*Mar  8 22:38:52.496: Vi1 AAA/AUTHOR/FSM: Check for unauthorized mandatory
AV's
*Mar  8 22:38:52.496: Vi1 AAA/AUTHOR/FSM: Processing AV service=ppp
*Mar  8 22:38:52.496: Vi1 AAA/AUTHOR/FSM: Processing AV protocol=ccp
*Mar  8 22:38:52.496: Vi1 AAA/AUTHOR/FSM: Succeeded
*Mar  8 22:38:52.500: Vi1 CCP: O CONFACK [ACKrcvd] id 7 len 10
*Mar  8 22:38:52.500: Vi1 CCP:    MS-PPC supported bits 0x01000020
(0x120601000020)
*Mar  8 22:38:52.500: Vi1 CCP: State is Open
*Mar  8 22:38:52.500: Vi1 MPPE: RADIUS keying material missing
*Mar  8 22:38:52.500: Vi1 CCP: O TERMREQ [Open] id 5 len 4
*Mar  8 22:38:52.524: Vi1 IPCP: I CONFREQ [ACKrcvd] id 8 len 10
*Mar  8 22:38:52.524: Vi1 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  8 22:38:52.524: Vi1 AAA/AUTHOR/IPCP: Start.  
Her address 0.0.0.0, we want 172.16.10.1
*Mar  8 22:38:52.524: Vi1 AAA/AUTHOR/IPCP: Processing AV service=ppp
*Mar  8 22:38:52.524: Vi1 AAA/AUTHOR/IPCP: Processing AV protocol=ip
*Mar  8 22:38:52.524: Vi1 AAA/AUTHOR/IPCP: Authorization succeeded
*Mar  8 22:38:52.524: Vi1 AAA/AUTHOR/IPCP: Done.  
Her address 0.0.0.0, we want 172.16.10.1
*Mar  8 22:38:52.524: Vi1 IPCP: O CONFNAK [ACKrcvd] id 8 len 10
*Mar  8 22:38:52.524: Vi1 IPCP:    Address 172.16.10.1 (0x0306AC100A01)
*Mar  8 22:38:52.640: Vi1 CCP: I TERMACK [TERMsent] id 5 len 4
*Mar  8 22:38:52.640: Vi1 CCP: State is Closed
*Mar  8 22:38:52.640: Vi1 MPPE: Required encryption not negotiated
*Mar  8 22:38:52.640: Vi1 IPCP: State is Closed
*Mar  8 22:38:52.640: Vi1 PPP: Phase is TERMINATING [0 sess, 0 load]
*Mar  8 22:38:52.640: Vi1 LCP: O TERMREQ [Open] id 13 len 4
*Mar  8 22:38:52.660: Vi1 IPCP: LCP not open, discarding packet
*Mar  8 22:38:52.776: Vi1 LCP: I TERMACK [TERMsent] id 13 len 4
*Mar  8 22:38:52.776: Vi1 AAA/AUTHOR/FSM: (0): LCP succeeds trivially
*Mar  8 22:38:52.780: Vi1 LCP: State is Closed
*Mar  8 22:38:52.780: Vi1 PPP: Phase is DOWN [0 sess, 0 load]
*Mar  8 22:38:52.780: Vi1 VPDN: Cleanup
*Mar  8 22:38:52.780: Vi1 VPDN: Reset
*Mar  8 22:38:52.780: Vi1 
Tnl/Cl 33/33 PPTP: close -> state change estabd to terminal
*Mar  8 22:38:52.780: Vi1 Tnl/Cl 33/33 PPTP: 
Destroying session, trace follows:
*Mar  8 22:38:52.780: -Traceback= 60C4A150 60C4AE48 60C49F68 60C4B5AC
60C30450 60C18B10 60C19238 60602CC4 605FC380 605FB730 605FD614 605F72A8
6040DE0C 6040DDF8
*Mar  8 22:38:52.784: Vi1 Tnl/Cl 33/33 PPTP: 
Releasing idb for tunnel 33 session 33
*Mar  8 22:38:52.784: Vi1 VPDN: Reset
*Mar  8 22:38:52.784: Tnl 33 PPTP: 
no-sess -> state change estabd to wt-stprp
*Mar  8 22:38:52.784: Vi1 VPDN: Unbind interface
*Mar  8 22:38:52.784: Vi1 VPDN: Unbind interface
*Mar  8 22:38:52.784: Vi1 VPDN: Reset
*Mar  8 22:38:52.784: Vi1 VPDN: Unbind interface

如果客户端经过加密配置而路由器却没有

我们可以在PC上看到以下消息：

Registering your computer on the network..
Errror 742: The remote computer doesnot support the required data
encryption type.
On the Router:
*Mar  9 01:06:00.868: Vi2 CCP: I CONFREQ [Not negotiated] id 5 len 10
*Mar  9 01:06:00.868: Vi2 CCP:    MS-PPC supported bits 0x010000B1
(0x1206010000B1)
*Mar  9 01:06:00.868: Vi2 LCP: O PROTREJ [Open] id 18 len 16 protocol CCP
(0x80FD0105000A1206010000B1)
*Mar  9 01:06:00.876: Vi2 IPCP: I CONFREQ [REQsent] id 6 len 34
*Mar  9 01:06:00.876: Vi2 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  9 01:06:00.876: Vi2 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  9 01:06:00.876: Vi2 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  9 01:06:00.876: Vi2 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  9 01:06:00.876: Vi2 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  9 01:06:00.880: Vi2 AAA/AUTHOR/IPCP: Start.  
Her address 0.0.0.0, we want 0.0.0.0
*Mar  9 01:06:00.880: Vi2 AAA/AUTHOR/IPCP: Processing AV service=ppp
*Mar  9 01:06:00.880: Vi2 AAA/AUTHOR/IPCP: Processing AV
mschap_mppe_keys*1p1T11=1v1O1~11a1W11151\1V1M1#1
1Z1`1k1}111
*Mar  9 01:06:00.880: Vi2 AAA/AUTHOR/IPCP: Authorization succeeded
*Mar  9 01:06:00.880: Vi2 AAA/AUTHOR/IPCP: Done.  
Her address 0.0.0.0, we want 0.0.0.0
*Mar  9 01:06:00.880: Vi2 IPCP: Pool returned 172.16.10.1
*Mar  9 01:06:00.880: Vi2 IPCP: O CONFREJ [REQsent] id 6 len 28
*Mar  9 01:06:00.880: Vi2 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  9 01:06:00.880: Vi2 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  9 01:06:00.880: Vi2 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  9 01:06:00.880: Vi2 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  9 01:06:00.884: Vi2 IPCP: I CONFACK [REQsent] id 8 len 10
*Mar  9 01:06:00.884: Vi2 IPCP:    Address 172.16.10.100 (0x0306AC100A64)
*Mar  9 01:06:01.024: Vi2 LCP: I TERMREQ [Open] id 7 len 16
(0x79127FBE003CCD74000002E6)
*Mar  9 01:06:01.024: Vi2 LCP: O TERMACK [Open] id 7 len 4
*Mar  9 01:06:01.152: Vi2 Tnl/Cl 38/38 PPTP: ClearReq -> state change
estabd to terminal
*Mar  9 01:06:01.152: Vi2 Tnl/Cl 38/38 PPTP: Destroying session, trace
follows:
*Mar  9 01:06:01.152: -Traceback= 60C4A150 60C4AE48 60C49F68 60C4B2CC
60C4B558 60C485E0 60C486E0 60C48AB8 6040DE0C 6040DDF8
*Mar  9 01:06:01.156: Vi2 Tnl/Cl 38/38 PPTP: Releasing idb for tunnel 38
session 38
*Mar  9 01:06:01.156: Vi2 VPDN: Reset
*Mar  9 01:06:01.156: Tnl 38 PPTP: no-sess -> state change estabd to
wt-stprp
*Mar  9 01:06:01.160: %LINK-3-UPDOWN: Interface Virtual-Access2, changed
state to down
*Mar  9 01:06:01.160: Vi2 LCP: State is Closed
*Mar  9 01:06:01.160: Vi2 IPCP: State is Closed
*Mar  9 01:06:01.160: Vi2 PPP: Phase is DOWN [0 sess, 0 load]
*Mar  9 01:06:01.160: Vi2 VPDN: Cleanup
*Mar  9 01:06:01.160: Vi2 VPDN: Reset
*Mar  9 01:06:01.160: Vi2 VPDN: Unbind interface
*Mar  9 01:06:01.160: Vi2 VPDN: Unbind interface
*Mar  9 01:06:01.160: Vi2 VPDN: Reset
*Mar  9 01:06:01.160: Vi2 VPDN: Unbind interface
*Mar  9 01:06:01.160: AAA/MEMORY: free_user (0x6273D528) user='tac' ruser='' 
port='Virtual-Access2' rem_addr='' authen_type=MSCHAP service=PPP priv=1
*Mar  9 01:06:01.324: Tnl 38 PPTP: StopCCRQ -> state change wt-stprp to wt-stprp
*Mar  9 01:06:01.324: Tnl 38 PPTP: Destroy tunnel
*Mar  9 01:06:02.160: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Virtual-Access2, changed state to down

对 PC 进行加密配置后禁用 MS-CHAP

我们可以在PC上看到以下消息： 

The current encryption selection requires EAP or some version of 
MS-CHAP logon security methods.

如果用户指定的用户名或密码不正确，我们可以看到以下输出。

在PC上： 

Verifying Username and Password..
Error 691: Access was denied because the username and/or password 
was invalid on the domain.

在路由器上: 

*Mar  9 01:13:43.192: RADIUS: Received from id 139 10.200.20.245:1645, 
Access-Reject, len 42
*Mar  9 01:13:43.192: Attribute 26 22 0000013702101545
*Mar  9 01:13:43.192: AAA/AUTHEN (608505327): status = FAIL
*Mar  9 01:13:43.192: Vi2 CHAP: Unable to validate Response. Username tac:
Authentication failure
*Mar  9 01:13:43.192: Vi2 MS-CHAP: O FAILURE id 21 len 13 msg is "E=691 R=0"
*Mar  9 01:13:43.192: Vi2 PPP: Phase is TERMINATING [0 sess, 0 load]
*Mar  9 01:13:43.192: Vi2 LCP: O TERMREQ [Open] id 20 len 4
*Mar  9 01:13:43.196: AAA/MEMORY: free_user (0x62740E7C) user='tac'
ruser='' port='Virtual-Access2' rem_addr='' authen_type=MSCHAP service=PPP
priv=1

当 RADIUS 服务器不能通讯时

我们可以在路由器上看到以下输出： 

*Mar  9 01:18:32.944: RADIUS: Retransmit id 141
*Mar  9 01:18:42.944: RADIUS: Tried all servers.
*Mar  9 01:18:42.944: RADIUS: No valid server found. Trying any viable server
*Mar  9 01:18:42.944: RADIUS: Tried all servers.
*Mar  9 01:18:42.944: RADIUS: No response for id 141
*Mar  9 01:18:42.944: Radius: No response from server
*Mar  9 01:18:42.944: AAA/AUTHEN (374484072): status = ERROR

相关信息

修订历史记录

版本 发布日期 备注
1.0
06-Sep-2004
初始版本

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