配置 Cisco 3600 路由器以支持 T1/E1 及数字调制解调器网络模块

简介

在许多环境中，必需配置一个接入服务器从异步用户和ISDN用户上接收来电。这些用户可以无缝地连接到网络，就好象实际连接到网络一样。因此，此设置通常用于为移动用户、远程办公用户、小型办公室-家庭办公室 (SOHO)站点提供网络连通性。

本文阐述如何在ISDN T1（ PRI或随路信令[CAS])电路上配置Cisco 3600系列路由器接收异步呼叫。该配置只包括网络接入服务器接受呼叫所需的最小值(NAS)。您可以根据需要向此配置添加其他功能。

注意：此配置不显示如何在3600系列路由器上配置通过BRI的异步拨入。有关详细信息，请参阅文档配置 Cisco 3640 BRI 的调制解调器连接。

先决条件

要求

本文档没有任何特定的要求。

使用的组件

此配置使用下面软件和硬件版本开发并且被测试。

• Cisco 3640 系列路由器，其中包含一个单端口信道化 T1/ISDN-PRI 网络模块 (NM-1CT1-CSU) 和一个 24 端口数字调制解调器网络模块 (NM-24DM)。

• 运行 Cisco IOS® 软件版本 12.1(5)T9 的 Cisco 3640 路由器。

• 一个 T1 PRI 电路。

• 一个 T1 CAS 电路。

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。

相关产品

此配置可以用在带有T1/E1网络模块和数字调制解调器网络模块的任何Cisco 3600系列路由器上。

"要获得关于AS5x00系列路由器的示例配置，请参见""为流入的异步呼叫和ISDN呼叫配置带有PRI的接入服务器""文档。"

也可以修改该配置，与E1或PRI端口结合使用。为E1控制器配置Telco提供的线性编码、成帧及其他物理特性。PRI 信道配置（E1 的接口 Serial x:15）与此处所示的配置类似。

规则

有关文档规则的详细信息，请参阅 Cisco 技术提示规则。

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(仅限注册客户)。

网络图

本文档使用下图所示的网络设置。

预配置任务

任务 1

确定安装数字调制解调器的插槽编号。使用 show diag EXEC 命令来确定安装模块的插槽。下面显示了 show diag EXEC 命令的示例输出：

acc-3640-6a#show diag
Slot 0:
        CT1 (CSU) Port adapter, 1 port

! -- NM-1CT1-CSU is in slot 0. ! -- The T1 interfaces are addressed as controller t1 slot/port. ! -- In this example, controller t1 0/0. 
        Port adapter is analyzed 
        Port adapter insertion time unknown
        EEPROM contents at hardware discovery:
        Hardware revision 1.1           Board revision D0
        Serial number     22677234      Part number    800-01228-04
        Test history      0x0           RMA number     00-00-00
        EEPROM format version 1
        EEPROM contents (hex):
          0x20: 01 26 01 01 01 5A 06 F2 50 04 CC 04 00 00 00 00
          0x30: 68 00 00 00 00 12 19 00 FF FF FF FF FF FF FF FF

Slot 1:
        Digital Modems Port adapter, 24 ports

! -- Digital modems are in slot 1. Note that there are 24 modems.

        Port adapter is analyzed 
        Port adapter insertion time unknown
        EEPROM contents at hardware discovery:
        Hardware revision 0.3           Board revision UNKNOWN
        Serial number     0             Part number    00-0000-00
        Test history      0x0           RMA number     00-00-00
...
... 

! -- Irrelevant Output omitted

....

任务 2

确定与调制解调器模块关联的线路编号或异步接口范围。

参见“如何在Cisco 3600系列路由器中编号异步线路”文件中的表格，以确定线路范围。

在本示例中，数字调制解调器网络模块位于 Cisco 3640 路由器的插槽 1 中。参照上文，我们确定线路号范围是33到64。但是，由于调制解调器模块只有24个端口，因此范围仅为线路33到56（其余八条线路未使用）。

提示：您还可以使用下面显示的公式查找行范围：

line number = (<slot> * 32) + <unit> + 1

因此，用我们的示例来说，起始线路数量为(1 * 32) + 0 +1 = 33，结束线路数量为56。

配置

下面是接受异步呼叫的 Cisco 3640 路由器的示例配置。第一个示例使用T3 CAS电路，而第二个示例使用T1 PRI电路。根据具有的 T1/E1 电路选择相应配置。

acc-3640-6a#show running-config
Building configuration...

Current configuration : 1137 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service internal
!
hostname acc-3640-6a
!
logging rate-limit console 10 except errors
!
username dialin password 0 user 

! -- Usernames for local authentication of the call. ! -- The client presents the username/password and the NAS ! -- authenticates the peer.

ip subnet-zero
!
no ip finger
no ip domain-lookup
!
async-bootp dns-server 10.98.1.220   

! -- Specifies (for async clients) the IP address of domain name server.

async-bootp nbns-server 10.98.1.221  

! -- Specifies (for async clients) the IP address of WINS server.

call rsvp-sync
!
controller T1 0/0  

! -- T1 Physical interface controller configuration. ! -- Interfaces are addressed as controller slot/port. ! -- In this example, the NM-1CT1-CSU module is in slot 0.

 framing esf

! -- Framing for this T1 is Extended Super Frame (ESF). ! -- Obtain this information from the telco.

 linecode b8zs

! -- Linecoding for this T1. Obtain this information from the telco.

 ds0-group 0 timeslots 1-24 type e & m-immediate-start;  

! -- CAS T1 with E & M Immediate Start provided by telco. ! -- Verify your signaling type with your local provider. Prior to Cisco IOS ! -- Software Release 12.0(5)T, this command was known as cas-group.

!
interface Ethernet2/0
 ip address 10.98.1.51 255.255.255.0
 half-duplex
!
interface Group-Async1

! -- This group-async interface is the configuration template for all modems. ! -- Individual async interface do not have to be configured since they ! -- can be cloned from one managed copy.

 ip unnumbered Ethernet2/0
 encapsulation ppp
 dialer in-band
 dialer-group 1

!--- Apply interesting traffic definition from dialer-list 1. ! -- Note: The specified dialer-group number must be the same as ! -- the dialer-list number; in this example, defined to be "1". ! -- Interesting traffic specifies the packets that should reset the idle timer. 
 
 dialer idle-timeout 600

! -- Sets Idle timer to 600 seconds (10 minutes).

 async mode dedicated

! -- Allows only PPP dialup. Prevents users from establishing ! -- an "EXEC session" to the router. If the async interface is to answer ! -- different connection types (exec,ppp,slip etc), ! -- use async mode interactive in conjunction with autoselect ppp ! -- under the line configuration to auto detect the connection type.

 peer default ip address pool dialin

! -- Clients are assigned addresses from the ip address pool named "dialin".

 ppp authentication chap pap
 group-range 33 56

! -- Modems 33 through 56 are members of this group async interface. ! -- This range was determined in the section Pre-configuration Tasks.

!
ip local pool dialin 10.98.1.15 10.98.1.39

! -- IP address pool for dialin clients.

ip classless
ip route 0.0.0.0 0.0.0.0 10.98.1.1
no ip http server
!
dialer-list 1 protocol ip permit  

! -- Specifies all IP traffic as interesting. Interesting traffic ! -- specifies the packets that should reset the idle timer. ! -- This is applied to interface Group-Async 1 using dialer-group 1. ! -- Note: The specified dialer-list number must be the same as the ! -- dialer-group number; in this example, defined to be "1".

!
dial-peer cor custom
!
line con 0
 transport input none
line 33 56

! -- TTY lines for the NM-24DM Modems. ! -- This line range was determined in the section Pre-configuration Tasks. 

 modem InOut  

! -- Support incoming and outgoing modem calls.

 transport input all
line aux 0
line vty 0 4
 login
!
end

acc-3640-6a#show running-config
Building configuration...

Current configuration : 1200 bytes
!
version 12.1
no service single-slot-reload-enable
service timestamps debug datetime msec
service timestamps log uptime
no service password-encryption
!
hostname acc-3640-6a
!
logging rate-limit console 10 except errors
!
username dialin password 0 user


! -- Usernames for local authentication of the call. The client ! -- presents the username/password and the NAS authenticates the peer. ! -- To use AAA with RADIUS or TACACS+ refer to the document ! -- Implementing the Server-Based AAA Subsystem 

ip subnet-zero
!
!
no ip finger
no ip domain-lookup
!
async-bootp dns-server 10.98.1.220! --  Specifies (for async clients) the IP address of domain 
name server.
async-bootp nbns-server 10.98.1.221  

! -- Specifies (for async clients) the IP address of WINS server.

isdn switch-type primary-5ess
call rsvp-sync
!
controller T1 0/0

! -- T1 Physical interface controller configuration. ! -- Interfaces are addressed as controller slot/port. ! -- In this example, the NM-1CT1-CSU module is in slot 0.

 framing esf

! -- Framing for this T1 is Extended Super Frame (ESF). ! -- Obtain this information from the telco.

 linecode b8zs

! -- Linecoding for this T1. Obtain this information from the telco.

 pri-group timeslots 1-24  

! -- For T1 PRI scenarios, all 24 T1 timeslots are assigned as ! -- ISDN PRI channels. The router will now automatically create ! -- the corresponding D-channel: interface Serial 0/0:23.

!
interface Serial0/0:23

! -- D-channel configuration for T1 0/0.

 no ip address
 encapsulation ppp
 isdn switch-type primary-5ess
 isdn incoming-voice modem

! -- All incoming voice calls on this T1 are sent to the modems. ! -- This command is required if this T1 is to accept async calls. ! -- The controller will now pass voice calls (bearercap 0x9090A2) to the modem bank. 
 
!
interface Ethernet2/0
 ip address 10.98.1.51 255.255.255.0
 half-duplex
!
interface Group-Async1

! -- This group-async interface is the configuration template for all modems. ! -- Individual async interface do not have to be configured since they can ! -- be cloned from one managed copy.

 ip unnumbered Ethernet2/0
 encapsulation ppp
 dialer in-band
 dialer-group 1

!--- Apply interesting traffic definition from dialer-list 1. ! -- Note: The specified dialer-group number must be the same as ! -- the dialer-list number; in this example, defined to be "1". ! -- Interesting traffic specifies the packets that should reset the idle timer. 

 dialer idle-timeout 600
 async mode dedicated

! -- Allows only PPP dialup. Prevents users from establishing an ! -- "EXEC session" to the router. If the async interface is to answer different ! -- connection types(exec,ppp,slip etc), use async mode interactive in ! -- conjunction with autoselect ppp under the line configuration ! -- to auto detect the connection type.

 peer default ip address pool dialin

! -- Clients are assigned addresses from the ip address pool named "dialin".

 ppp authentication chap pap
 group-range 33 56

! -- Modems 33 through 56 are members of this group async interface. ! -- This range was determined in the section Pre-configuration Tasks. 
  
!
ip local pool dialin 10.98.1.15 10.98.1.39
! -- IP address pool for dialin clients.
ip classless
ip route 0.0.0.0 0.0.0.0 10.98.1.1
no ip http server
!
dialer-list 1 protocol ip permit 

! -- Specifies all IP traffic as interesting. ! -- Interesting traffic specifies the packets that should reset the idle timer. ! -- This is applied to interface Group-Async 1 using dialer-group 1. ! -- Note: The specified dialer-list number must be the same as the ! -- dialer-group number; in this example, defined to be "1".

dial-peer cor custom
!
line con 0
 transport input none
line 33 56

! -- TTY lines for the NM-24DM Modems. ! -- This line range was determined in the section Pre-configuration Tasks.

 modem InOut  

! -- Support incoming and outgoing modem calls.

 transport input all
line aux 0
line vty 0 4
 login
!
end

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。

命令输出解释程序工具（仅限注册用户）支持某些 show 命令，使用此工具可以查看对 show 命令输出的分析。

• show isdn status - 确保路由器与 ISDN 交换机正常通信。在输出中，验证第1层状态是否为活跃状态，是否第2层状态=MULTIPLE_FRAME_ESTABLISHED出现。此指令也显示活动的呼叫的数量。

• show caller user username detail -显示特定用户参数，如分配的IP地址、PPP和PPP捆绑参数等。如果您的Cisco IOS版本软件不支持此指令，请使用show users命令。

• show dialer map - 显示已配置的动态和静态 Dialer Maps。此指令可以被用于发现动态拨号映射是否被创建了。没有dialer map，您不能路由数据包。

故障排除

本部分提供的信息可用于对配置进行故障排除。

故障排除资源

按照需要使用下列故障排除资源：

• 传入调制解调器呼叫的故障排除 - 用于模拟呼叫故障排除。

• PRI 异步调制解调器呼入 - 有关对模拟呼叫故障进行故障排除的其他信息。

• T1故障排除流程图——如果怀疑T1电路没有正常运行，则使用此流程图。

• T1/56K 线路的环回测试 - 用于验证路由器上的 T1 端口是否正常运行。

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 dialer -关于在拨号接口收到数据包的显示DDR调试信息。此信息有助于保证具有可以使用拨号程序接口的触发数据流。

• debug isdn q931 -显示呼叫建立和拆卸ISDN网络连接(第3层)。

• debug modem - 显示接入服务器上的调制解调器线路活动情况。该输出显示出调制解调器线路何时改变状态。

• debug modem csm - EXEC 命令，用于诊断带有内部数字调制解调器的路由器上的呼叫交换模块 (CSM) 问题。使用该指令，您能跟踪呼入和呼出的呼叫交换排序的完成情况。

• debug ppp negotiation -显示协商链路控制协议(LCP)、认证和网络控制协议(NCP)时的 PPP数据流量和交换的信息。一个成功的PPP协商协议首先开启LCP状态，然后是鉴权，最后协商NCP。在 LCP 协商期间建立多链路参数，如最大接收重建单元 (MRRU)。

• debug ppp authentication - 显示 PPP 认证协议消息，包括 CHAP 数据包交换和口令身份验证协议 (PAP) 交换。

• debug ppp error -显示与PPP连接协商和运行有关的协议错误和错误统计数据。

下面是成功呼叫（使用 T1 CAS）的一些调试输出。 注意在输出和备注中的粗体部分。比较您得到与如下所示的结果的输出。

acc-3640-6a#show debug
CSM Modem Management:
  Modem Management Call Switching Module debugging is on
PPP:
  PPP authentication debugging is on
  PPP protocol negotiation debugging is on

! -- Only debug modem csm, debug ppp authentication and ! -- debug ppp negotiation were activated.

acc-3640-6a#
00:13:42: Modem 255/255 CSM: received EVENT_CALL_DIAL_IN with call_id 0000
00:13:42:     src 0/0/0 dest 255/0/255 cause 512
00:13:42: CSM: Next free modem = 1/0; statbits = 10020
00:13:42: Modem 1/0 CSM: modem is allocated, modems free=23

! -- The Call Switch Module (CSM) is informed of the call. ! -- The CSM allocates modem 1/0 to the incoming call.

00:13:42: Modem 1/0 CSM: (CSM_PROC_IDLE)<--DSX0_CALL
00:13:42: Modem 1/0 CSM: (CSM_PROC_IC_CAS_CHANNEL_LOCKED)<--CSM_EVENT_MODEM_SETUP
00:13:42: Modem 1/0 CSM: received EVENT_START_RX_TONE with call_id 0000
00:13:42:     src 0/0/0 dest 1/0/0 cause 0
00:13:42: Modem 1/0 CSM: (CSM_PROC_IC_CAS_ANSWER_CALL)<--DSX0_START_RX_TONE
00:13:42: Modem 1/0 CSM: received EVENT_CHANNEL_CONNECTED with call_id 0000
00:13:42:     src 0/0/0 dest 1/0/0 cause 0
00:13:42: Modem 1/0 CSM: (CSM_PROC_IC_CAS_ANSWER_CALL)<--DSX0_CONNECTED
00:14:04: Modem 1/0 CSM: (CSM_PROC_CAS_WAIT_FOR_CARRIER)<--MODEM_CONNECTED

! -- Modem 1/0 is Connected.

00:14:07: %LINK-3-UPDOWN: Interface Async33, changed state to up

! -- Modem 1/0 corresponds to int async 33 (and line 33).

00:14:07: As33 PPP: Treating connection as a callin
00:14:07: As33 PPP: Phase is ESTABLISHING, Passive Open [0 sess, 0 load]
00:14:07: As33 LCP: State is Listen

! -- LCP negotiation begins.

00:14:08: As33 LCP: I CONFREQ [Listen] id 2 len 23

! -- Incoming LCP CONFREQ. ! -- For more information on interpreting PPP debugs refer to the document ! -- Dialup Technology: Troubleshooting Techniques.

00:14:08: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
00:14:08: As33 LCP:    MagicNumber 0x00ADDA8E (0x050600ADDA8E)
00:14:08: As33 LCP:    PFC (0x0702)
00:14:08: As33 LCP:    ACFC (0x0802)
00:14:08: As33 LCP:    Callback 6  (0x0D0306)
00:14:08: As33 LCP: O CONFREQ [Listen] id 12 len 25
00:14:08: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
00:14:08: As33 LCP:    AuthProto CHAP (0x0305C22305)
00:14:08: As33 LCP:    MagicNumber 0xD0653B57 (0x0506D0653B57)
00:14:08: As33 LCP:    PFC (0x0702)
00:14:08: As33 LCP:    ACFC (0x0802)
00:14:08: As33 LCP: O CONFREJ [Listen] id 2 len 7
00:14:08: As33 LCP:    Callback 6  (0x0D0306)
00:14:08: As33 LCP: I CONFACK [REQsent] id 12 len 25
00:14:08: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
00:14:08: As33 LCP:    AuthProto CHAP (0x0305C22305)
00:14:08: As33 LCP:    MagicNumber 0xD0653B57 (0x0506D0653B57)
00:14:08: As33 LCP:    PFC (0x0702)
00:14:08: As33 LCP:    ACFC (0x0802)
00:14:08: As33 LCP: I CONFREQ [ACKrcvd] id 3 len 20
00:14:08: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
00:14:08: As33 LCP:    MagicNumber 0x00ADDA8E (0x050600ADDA8E)
00:14:08: As33 LCP:    PFC (0x0702)
00:14:08: As33 LCP:    ACFC (0x0802)
00:14:08: As33 LCP: O CONFACK [ACKrcvd] id 3 len 20
00:14:08: As33 LCP:    ACCM 0x000A0000 (0x0206000A0000)
00:14:08: As33 LCP:    MagicNumber 0x00ADDA8E (0x050600ADDA8E)
00:14:08: As33 LCP:    PFC (0x0702)
00:14:08: As33 LCP:    ACFC (0x0802)
00:14:08: As33 LCP: State is Open

! --- LCP negotiation is complete.

00:14:08: As33 PPP: Phase is AUTHENTICATING, by this end [0 sess, 0 load]
00:14:08: As33 CHAP: O CHALLENGE id 1 len 32 from "acc-3640-6a"
00:14:08: As33 AUTH: Started process 0 pid 94
00:14:08: As33 CHAP: I RESPONSE id 1 len 27 from "dialin"
00:14:08: As33 CHAP: O SUCCESS id 1 len 4

! -- CHAP authentication is successful. ! -- If this fails verify that the username and password are correct. ! -- Refer to Dialup Technology: Troubleshooting Techniques.

00:14:08: As33 PPP: Phase is UP [0 sess, 0 load]

! -- IPCP negotiation begins.

00:14:08: As33 IPCP: O CONFREQ [Closed] id 1 len 10
00:14:08: As33 IPCP:    Address 10.98.1.51 (0x03060A620133)
00:14:08: As33 IPCP: I CONFREQ [REQsent] id 1 len 40
00:14:08: As33 IPCP:    CompressType VJ 15 slots CompressSlotID (0x0206002D0F01)
00:14:08: As33 IPCP:    Address 0.0.0.0 (0x030600000000)
00:14:08: As33 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
00:14:08: As33 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
00:14:08: As33 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
00:14:08: As33 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
00:14:08: As33 IPCP: Pool returned 10.98.1.15
! -- The IP Address Pool "dialin" provides the address for the client
00:14:08: As33 IPCP: O CONFREJ [REQsent] id 1 len 22
00:14:08: As33 IPCP:    CompressType VJ 15 slots CompressSlotID (0x0206002D0F01)
00:14:08: As33 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
00:14:08: As33 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
00:14:08: As33 CCP: I CONFREQ [Not negotiated] id 1 len 15
00:14:08: As33 CCP:    MS-PPC supported bits 0x00000001 (0x120600000001)
00:14:08: As33 CCP:    Stacker history 1 check mode EXTENDED (0x1105000104)
00:14:08: As33 LCP: O PROTREJ [Open] id 13 len 21 protocol CCP
00:14:08: As33 LCP:  (0x80FD0101000F12060000000111050001)
00:14:08: As33 LCP:  (0x04)
00:14:08: As33 IPCP: I CONFACK [REQsent] id 1 len 10
00:14:08: As33 IPCP:    Address 10.98.1.51 (0x03060A620133)
00:14:10: As33 IPCP: TIMEout: State ACKrcvd
00:14:10: As33 IPCP: O CONFREQ [ACKrcvd] id 2 len 10
00:14:10: As33 IPCP:    Address 10.98.1.51 (0x03060A620133)
00:14:10: As33 IPCP: I CONFACK [REQsent] id 2 len 10
00:14:10: As33 IPCP:    Address 10.98.1.51 (0x03060A620133)
00:14:11: As33 IPCP: I CONFREQ [ACKrcvd] id 2 len 34
00:14:11: As33 IPCP:    Address 0.0.0.0 (0x030600000000)
00:14:11: As33 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
00:14:11: As33 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
00:14:11: As33 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
00:14:11: As33 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
00:14:11: As33 IPCP: O CONFREJ [ACKrcvd] id 2 len 16
00:14:11: As33 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
00:14:11: As33 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
00:14:11: As33 IPCP: I CONFREQ [ACKrcvd] id 3 len 22
00:14:11: As33 IPCP:    Address 0.0.0.0 (0x030600000000)
00:14:11: As33 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
00:14:11: As33 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
00:14:11: As33 IPCP: O CONFNAK [ACKrcvd] id 3 len 22
00:14:11: As33 IPCP:    Address 10.98.1.15 (0x03060A62010F)
00:14:11: As33 IPCP:    PrimaryDNS 10.98.1.220 (0x81060A6201DC)
00:14:11: As33 IPCP:    PrimaryWINS 10.98.1.221 (0x82060A6201DD)
00:14:11: As33 IPCP: I CONFREQ [ACKrcvd] id 4 len 22
00:14:11: As33 IPCP:    Address 10.98.1.15 (0x03060A62010F)
00:14:11: As33 IPCP:    PrimaryDNS 10.98.1.220 (0x81060A6201DC)
00:14:11: As33 IPCP:    PrimaryWINS 10.98.1.221 (0x82060A6201DD)
00:14:11: As33 IPCP: O CONFACK [ACKrcvd] id 4 len 22
00:14:11: As33 IPCP:    Address 10.98.1.15 (0x03060A62010F)
00:14:11: As33 IPCP:    PrimaryDNS 10.98.1.220 (0x81060A6201DC)

! -- The Primary DNS server is agreed upon. ! -- This was configured using the async bootp commands.

00:14:11: As33 IPCP:    PrimaryWINS 10.98.1.221 (0x82060A6201DD)

! -- The Primary WINS server is agreed upon. ! -- This was configured using the async bootp commands.

00:14:11: As33 IPCP: State is Open

! -- IPCP negotiation is complete. The user is now connected.

00:14:11: As33 IPCP: Install route to 10.98.1.15

! -- The NAS installs a route to the client.

对远端对等体的 ICMP ping 操作成功：

acc-3640-6a#ping 10.98.1.15

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.98.1.15, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 124/138/148 ms
acc-3640-6a#

下面是成功呼叫（使用 T1 PRI）的一些调试输出。 注意在输出和备注中的粗体部分。比较您得到与如下所示的结果的输出。

acc-3640-6a#show debug
CSM Modem Management:
  Modem Management Call Switching Module debugging is on
PPP:
  PPP authentication debugging is on
  PPP protocol negotiation debugging is on
ISDN:
  ISDN Q931 packets debugging is on
  ISDN Q931 packets debug DSLs. (On/Off/No DSL:1/0/-)
  DSL  0 --> 31
  1 - - - - - - -  - - - - - - - -  - - - - - - - -  - - - - - - - -  

! -- Only debug modem csm, debug ppp authentication, debug ppp negotiation and ! -- debug isdn q931 were activated.

acc-3640-6a#
*Mar  1 00:22:43.743: ISDN Se0/0:23: RX <-  SETUP pd = 8  callref = 0x32

! -- Incoming Q.931 SETUP message. Indicates an incoming call. ! -- For more information on Q.931 refer to the document. ! -- Troubleshooting ISDN Layer 3 using the debug isdn q931 Command. 
*Mar  1 00:22:43.747:         Bearer Capability i = 0x9090A2
*Mar  1 00:22:43.747:         Channel ID i = 0xA98393
*Mar  1 00:22:43.747:         Calling Party Number i = 0x2183, '9194722001', 
Plan:ISDN, Type:National
*Mar  1 00:22:43.747:         Called Party Number i = 0xC1, '9194724137', 
Plan:ISDN, Type:Subscriber(local)
*Mar  1 00:22:43.755: CSM: MODEM_REPORT from 0/0:18, call_id=0x4, event=0x1, 
cause=0x0, dchan_idb=0x62442AB8
*Mar  1 00:22:43.755: CSM: Next free modem = 1/3; statbits = 10020

! -- The Call Switch Module (CSM) is informed of the call. ! -- The CSM allocates modem 2/0 to the incoming call. 
*Mar  1 00:22:43.755: Modem 1/3 CSM: modem is allocated, modems free=23
*Mar  1 00:22:43.755: Modem 1/3 CSM: Incoming call from 9194722001 to 9194724137, 
id 0x4
*Mar  1 00:22:43.755: Modem 1/3 CSM: (CSM_PROC_IDLE)<--ISDN_CALL
*Mar  1 00:22:43.803: ISDN Se0/0:23: TX ->  CALL_PROC pd = 8  callref = 0x8032
*Mar  1 00:22:43.803:         Channel ID i = 0xA98393

! -- The Call Proceeding Message is sent through the D-channel.

*Mar  1 00:22:43.807: ISDN Se0/0:23: TX ->  ALERTING pd = 8  callref = 0x8032
*Mar  1 00:22:43.807: ISDN Se0/0:23: TX ->  CONNECT pd = 8  callref = 0x8032

! -- D-channel transmits a CONNECT.

*Mar  1 00:22:43.907: ISDN Se0/0:23: RX <-  CONNECT_ACK pd = 8  callref = 0x32

! -- Received the Q.931 CONNECT_ACK.

*Mar  1 00:22:43.911: ISDN Se0/0:23: CALL_PROGRESS: CALL_CONNECTED call id 0x4, 
bchan 18, dsl 0
*Mar  1 00:22:43.911: CSM: MODEM_REPORT from 0/0:18, call_id=0x4, event=0x4, 
cause=0x0, dchan_idb=0x62442AB8
*Mar  1 00:22:43.911: Modem 1/3 CSM: MODEM_REPORT rcvd DEV_CONNECTED for call_id 0x4
*Mar  1 00:22:43.911: Modem 1/3 CSM: (CSM_PROC_MODEM_RESERVED)<--ISDN_CONNECTED
00:22:43: %ISDN-6-CONNECT: Interface Serial0/0:18 is now connected to 9194722001 
*Mar  1 00:23:06.291: Modem 1/3 CSM: (CSM_PROC_WAIT_FOR_CARRIER)<--MODEM_CONNECTED

! -- Modem is connected.

00:23:08: %LINK-3-UPDOWN: Interface Async36, changed state to up

! -- Modem 1/3 corresponds to int async 36 (and line 36).

*Mar  1 00:23:08.755: As36 PPP: Treating connection as a callin
*Mar  1 00:23:08.755: As36 PPP: Phase is ESTABLISHING, Passive Open [0 sess, 0 load]
*Mar  1 00:23:08.755: As36 LCP: State is Listen

! -- LCP negotiation begins.

*Mar  1 00:23:09.399: As36 LCP: I CONFREQ [Listen] id 2 len 23

! -- Incoming LCP CONFREQ. ! -- For more information on interpreting PPP debugs refer to the document ! -- Dialup Technology: Troubleshooting Techniques. 
*Mar  1 00:23:09.399: As36 LCP:    ACCM 0x000A0000 (0x0206000A0000)
*Mar  1 00:23:09.399: As36 LCP:    MagicNumber 0x009B41FA (0x0506009B41FA)
*Mar  1 00:23:09.399: As36 LCP:    PFC (0x0702)
*Mar  1 00:23:09.399: As36 LCP:    ACFC (0x0802)
*Mar  1 00:23:09.399: As36 LCP:    Callback 6  (0x0D0306)
*Mar  1 00:23:09.399: As36 LCP: O CONFREQ [Listen] id 1 len 25
*Mar  1 00:23:09.399: As36 LCP:    ACCM 0x000A0000 (0x0206000A0000)
*Mar  1 00:23:09.399: As36 LCP:    AuthProto CHAP (0x0305C22305)
*Mar  1 00:23:09.403: As36 LCP:    MagicNumber 0xD06D7DF1 (0x0506D06D7DF1)
*Mar  1 00:23:09.403: As36 LCP:    PFC (0x0702)
*Mar  1 00:23:09.403: As36 LCP:    ACFC (0x0802)
*Mar  1 00:23:09.403: As36 LCP: O CONFREJ [Listen] id 2 len 7
*Mar  1 00:23:09.403: As36 LCP:    Callback 6  (0x0D0306)
*Mar  1 00:23:09.523: As36 LCP: I CONFACK [REQsent] id 1 len 25
*Mar  1 00:23:09.523: As36 LCP:    ACCM 0x000A0000 (0x0206000A0000)
*Mar  1 00:23:09.523: As36 LCP:    AuthProto CHAP (0x0305C22305)
*Mar  1 00:23:09.523: As36 LCP:    MagicNumber 0xD06D7DF1 (0x0506D06D7DF1)
*Mar  1 00:23:09.523: As36 LCP:    PFC (0x0702)
*Mar  1 00:23:09.523: As36 LCP:    ACFC (0x0802)
*Mar  1 00:23:09.527: As36 LCP: I CONFREQ [ACKrcvd] id 3 len 20
*Mar  1 00:23:09.531: As36 LCP:    ACCM 0x000A0000 (0x0206000A0000)
*Mar  1 00:23:09.531: As36 LCP:    MagicNumber 0x009B41FA (0x0506009B41FA)
*Mar  1 00:23:09.531: As36 LCP:    PFC (0x0702)
*Mar  1 00:23:09.531: As36 LCP:    ACFC (0x0802)
*Mar  1 00:23:09.531: As36 LCP: O CONFACK [ACKrcvd] id 3 len 20
*Mar  1 00:23:09.531: As36 LCP:    ACCM 0x000A0000 (0x0206000A0000)
*Mar  1 00:23:09.531: As36 LCP:    MagicNumber 0x009B41FA (0x0506009B41FA)
*Mar  1 00:23:09.531: As36 LCP:    PFC (0x0702)
*Mar  1 00:23:09.531: As36 LCP:    ACFC (0x0802)
*Mar  1 00:23:09.531: As36 LCP: State is Open

! --- LCP negotiation is complete.

*Mar  1 00:23:09.531: As36 PPP: Phase is AUTHENTICATING, by this end [0 sess, 0 load]
*Mar  1 00:23:09.531: As36 CHAP: O CHALLENGE id 1 len 32 from "acc-3640-6a"
*Mar  1 00:23:09.651: As36 CHAP: I RESPONSE id 1 len 27 from "dialin"
*Mar  1 00:23:09.655: As36 CHAP: O SUCCESS id 1 len 4

! -- CHAP authentication is successful. ! -- If this fails verify that the username and password are correct. ! -- Refer to Dialup Technology: Troubleshooting Techniques. 
*Mar  1 00:23:09.655: As36 PPP: Phase is UP [0 sess, 0 load]
*Mar  1 00:23:09.655: As36 IPCP: O CONFREQ [Closed] id 1 len 10
*Mar  1 00:23:09.655: As36 IPCP:    Address 10.98.1.51 (0x03060A620133)
*Mar  1 00:23:09.771: As36 IPCP: I CONFREQ [REQsent] id 1 len 40
*Mar  1 00:23:09.771: As36 IPCP:    CompressType VJ 15 slots CompressSlotID 
  (0x0206002D0F01)
*Mar  1 00:23:09.771: As36 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  1 00:23:09.771: As36 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  1 00:23:09.771: As36 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  1 00:23:09.771: As36 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  1 00:23:09.771: As36 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  1 00:23:09.771: As36 IPCP: Pool returned 10.98.1.15

! -- The IP Address Pool "dialin" provides the address for the client.

*Mar  1 00:23:09.771: As36 IPCP: O CONFREJ [REQsent] id 1 len 22
*Mar  1 00:23:09.771: As36 IPCP:    CompressType VJ 15 slots CompressSlotID 
(0x0206002D0F01)
*Mar  1 00:23:09.771: As36 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  1 00:23:09.771: As36 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  1 00:23:09.779: As36 CCP: I CONFREQ [Not negotiated] id 1 len 15
*Mar  1 00:23:09.779: As36 CCP:    MS-PPC supported bits 0x00000001 
(0x120600000001)
*Mar  1 00:23:09.779: As36 CCP:    Stacker history 1 check mode EXTENDED 
(0x1105000104)
*Mar  1 00:23:09.779: As36 LCP: O PROTREJ [Open] id 2 len 21 protocol CCP
*Mar  1 00:23:09.779: As36 LCP:  (0x80FD0101000F12060000000111050001)
*Mar  1 00:23:09.779: As36 LCP:  (0x04)
*Mar  1 00:23:09.783: As36 IPCP: I CONFACK [REQsent] id 1 len 10
*Mar  1 00:23:09.783: As36 IPCP:    Address 10.98.1.51 (0x03060A620133)
*Mar  1 00:23:11.655: As36 IPCP: TIMEout: State ACKrcvd
*Mar  1 00:23:11.655: As36 IPCP: O CONFREQ [ACKrcvd] id 2 len 10
*Mar  1 00:23:11.655: As36 IPCP:    Address 10.98.1.51 (0x03060A620133)
*Mar  1 00:23:11.759: As36 IPCP: I CONFACK [REQsent] id 2 len 10
*Mar  1 00:23:11.759: As36 IPCP:    Address 10.98.1.51 (0x03060A620133)
*Mar  1 00:23:12.759: As36 IPCP: I CONFREQ [ACKrcvd] id 2 len 34
*Mar  1 00:23:12.763: As36 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  1 00:23:12.763: As36 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  1 00:23:12.763: As36 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  1 00:23:12.763: As36 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  1 00:23:12.763: As36 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  1 00:23:12.763: As36 IPCP: O CONFREJ [ACKrcvd] id 2 len 16
*Mar  1 00:23:12.763: As36 IPCP:    SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar  1 00:23:12.763: As36 IPCP:    SecondaryWINS 0.0.0.0 (0x840600000000)
*Mar  1 00:23:12.871: As36 IPCP: I CONFREQ [ACKrcvd] id 3 len 22
*Mar  1 00:23:12.871: As36 IPCP:    Address 0.0.0.0 (0x030600000000)
*Mar  1 00:23:12.871: As36 IPCP:    PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar  1 00:23:12.871: As36 IPCP:    PrimaryWINS 0.0.0.0 (0x820600000000)
*Mar  1 00:23:12.871: As36 IPCP: O CONFNAK [ACKrcvd] id 3 len 22
*Mar  1 00:23:12.871: As36 IPCP:    Address 10.98.1.15 (0x03060A62010F)
*Mar  1 00:23:12.871: As36 IPCP:    PrimaryDNS 10.98.1.220 (0x81060A6201DC)
*Mar  1 00:23:12.871: As36 IPCP:    PrimaryWINS 10.98.1.221 (0x82060A6201DD)
*Mar  1 00:23:12.979: As36 IPCP: I CONFREQ [ACKrcvd] id 4 len 22
*Mar  1 00:23:12.979: As36 IPCP:    Address 10.98.1.15 (0x03060A62010F)
*Mar  1 00:23:12.979: As36 IPCP:    PrimaryDNS 10.98.1.220 (0x81060A6201DC)
*Mar  1 00:23:12.983: As36 IPCP:    PrimaryWINS 10.98.1.221 (0x82060A6201DD)
*Mar  1 00:23:12.983: As36 IPCP: O CONFACK [ACKrcvd] id 4 len 22
*Mar  1 00:23:12.983: As36 IPCP:    Address 10.98.1.15 (0x03060A62010F)
*Mar  1 00:23:12.983: As36 IPCP:    PrimaryDNS 10.98.1.220 (0x81060A6201DC)

! -- The Primary DNS server is agreed upon. ! -- This was configured using the async bootp commands.

*Mar  1 00:23:12.983: As36 IPCP:    PrimaryWINS 10.98.1.221 (0x82060A6201DD)

! -- The Primary WINS server is agreed upon. ! -- This was configured using the async bootp commands.

*Mar  1 00:23:12.983: As36 IPCP: State is Open

! -- IPCP negotiation is complete. The user is now connected.

*Mar  1 00:23:12.983: As36 IPCP: Install route to 10.98.1.15

! -- The NAS installs a route to the client.

对远端对等体的 ICMP ping 操作成功：

acc-3640-6a#ping 10.98.1.15

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.98.1.15, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 124/132/140 ms
acc-3640-6a#   

相关信息

• Cisco 3640 的数字调制解调器网络模块
• Cisco 3640 数字调制解调器网络模块的 T1 CAS 支持
• 在 E1 和 T1 线路上配置 ISDN PRI 及其他信令
• 用于拨号接入的接口、控制器和线路概述
• 技术支持 - Cisco Systems