Configurando um Cisco 3600 router com T1/E1 e módulos de rede de modem digital

Introduction

Em muitos ambientes, é necessário configurar um Servidor de acesso para aceitar o recebimento de chamadas de usuários assíncronos e ISDN. Esses usuários poderiam se conectar sem problemas à rede como se estivessem presentes fisicamente. Portanto, essa instalação é usada freqüentemente para fornecer a conectividade de rede para os usuários que trafegam ou se telecomunicam, assim como para as estações de Small Office-Home Office (SOHO).

Este documento trata de como configurar um Cisco 3600 Series Router para aceitar chamadas recebidas Assíncronas em circuitos ISDN T1 (PRI ou sinalização associada a canal [CAS]). Essa configuração inclui apenas o mínimo limitado exigido para que o Servidor de Acesso à Rede (NAS) aceite a chamada. Recursos adicionais podem ser acrescentados a esta configuração, dependendo das necessidades.

Observação: esta configuração não mostra como configurar a discagem assíncrona sobre BRI em um 3600 Series Router. Para obter mais informações, consulte o documento Configuração da Conectividade de Modem com um Cisco 3640 BRI.

Prerequisites

Requirements

Não existem requisitos específicos para este documento.

Componentes Utilizados

Esta configuração foi desenvolvida e testada utilizando as versões de software e hardware abaixo.

• Um Cisco 3640 Series Router com um One-port Channelized T1/ISDN-PRI Network Module (NM-1CT1-CSU) e um 24 port Digital Modem Network Module (NM-24DM).

• O roteador Cisco 3640 está executando o Cisco IOS® Software Versão 12.1(5)T9.

• Um circuito PRI T1.

• Um circuito CAS T1.

As informações neste documento foram criadas a partir de dispositivos em um ambiente de laboratório específico. All of the devices used in this document started with a cleared (default) configuration. Se você estiver trabalhando em uma rede ativa, certifique-se de que entende o impacto potencial de qualquer comando antes de utilizá-lo.

Produtos Relacionados

Esta configuração pode ser utilizada em qualquer Cisco 3600 Series Router com um T1/E1 Network Module e o Digital Modem Network Module.

Para um exemplo de configuração envolvendo os AS5x00 Series Routers, consulte o documento Configuração de um Servidor de Acesso com PRIs para Chamadas de Entrada Assíncronas e ISDN.

Essa configuração pode também ser modificada para ser usada com portas E1 ou PRI. Configure o controlador E1com a codificação de linha, enquadramento e outras características físicas suportadas pela Telco. A configuração do canal D PRI (serial de interface x:15 para E1s) é similar àquela mostrada aqui.

Conventions

Para obter mais informações sobre convenções de documento, consulte as Convenções de dicas técnicas Cisco.

Configurar

Nesta seção, você encontrará informações para configurar os recursos descritos neste documento.

Observação: para encontrar informações adicionais sobre os comandos usados neste documento, use a ferramenta IOS Command Lookup (somente clientes registrados) .

Diagrama de Rede

Este documento utiliza a instalação de rede mostrada no diagrama abaixo.

Tarefas de pré-configuração

Tarefa Um

Determine o número do slot no qual os modems digitais estão instalados. Use o comando EXEC show diag para determinar o slot no qual o módulo está instalado. Abaixo, um exemplo de saída do comando de EXEC show diag:

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

....

Tarefa Dois

Determine os números de linha ou intervalo de interface assíncrona associada ao módulo do modem.

Consulte a tabela encontrada no documento How Async Lines are Numbered in Cisco 3600 Series Routers para determinar o intervalo da linha.

Neste exemplo, o Digital Modem Network Module está no slot 1 do Cisco 3640 Router. Consultando o documento mencionado anteriormente, constatamos que o intervalo do número de linha é de 33 a 64. Entretanto, como o módulo do modem possui apenas 24 portas, o intervalo é apenas das linhas 33 a 56 (as oito remanescentes não são utilizadas).

Dica: você também pode usar a fórmula mostrada abaixo para localizar o intervalo de linha:

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

Portanto, para o nosso exemplo, o número de linha inicial é (1 * 32) + 0 +1 = 33 e o número de linha final é 56.

Configurações

Veja a seguir algumas amostras de configuração para um roteador Cisco 3640 que aceita chamadas assíncronas. O primeiro exemplo utiliza circuito CAS T1, enquanto o segundo utiliza circuito PRI T1. Escolha a configuração apropriada com base no seu circuito T1/E1.

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

Verificar

Esta seção fornece informações que você pode usar para confirmar se sua configuração está funcionando adequadamente.

A Output Interpreter Tool (somente clientes registrados) oferece suporte a determinados comandos show, o que permite exibir uma análise da saída do comando show.

• show isdn status - Garante que o roteador está se comunicando corretamente com o switch ISDN. Na saída, verifique se o status da camada 1 está ATIVO e se o estado de status da camada 2 = MULTIPLE_FRAME_ESTABLISHED é exibido. Esse comando exibe também o número de chamadas ativas.

• show caller user username detail - Mostra parâmetros para o usuário particular, como endereço IP designado, PPP, parâmetros de pacote PPP, etc. Se sua versão do Cisco IOS Software não suporta este comando, utilize o comando show user.

• show dialer map – Exibe os mapas configurados de discador dinâmicos e estáticos. Este comando pode ser utilizado para ver se um mapa de discador dinâmico foi criado. Sem um mapa de discadores, você não pode encaminhar pacotes.

Troubleshoot

Esta seção fornece informações que podem ser usadas para o troubleshooting da sua configuração.

Troubleshooting de Recursos

Utilize os seguintes recursos para Troubleshooting conforme necessário:

• Troubleshooting de Chamada de Modem Recebida – Para Troubleshooting de Falha de Chamada Analógica.

• PRI Async Modem Callin - informações adicionais sobre Troubleshooting de Falhas de Chamada Analógica.

• Fluxograma de Troubleshooting de T1 - Use este fluxograma se suspeitar que o circuito T1 não está funcionando de forma adequada.

• Testes de circuito fechado para linhas T1/56K - Para verificar se a porta T1do roteador está funcionando corretamente.

Comandos para Troubleshooting

Determinados comandos show são suportados pela Ferramenta Output Interpreter, que permite que você veja uma análise do resultado do comando show.

Observação: antes de emitir comandos debug, consulte Informações importantes sobre comandos debug.

• debug dialer - Exibe informações de depuração de DDR sobre os pacotes recebidos em uma interface de discador. Estas informações podem ajudá-lo a assegurar que há tráfego interessante que pode utilizar a interface de discador.

• debug isdn q931 – Exibe a configuração de chamada e alinhamento da conexão de rede ISDN (Camada 3).

• debug modem - Exibe a atividade da linha do modem em um servidor de acesso. A saída mostra quando a linha de modem muda de estado.

• debug modem csm - Um comando EXEC para fazer Troubleshooting do Call Switching Module (CSM) em roteadores com modems digitais internos. Com este comando, você pode rastrear a seqüência completa de chamadas recebidas e enviadas por switching.

• debug ppp negotiation – Exibe informações sobre o tráfego PPP e alterações enquanto negocia o Protocolo de controle de enlace (LCP), autenticação e Protocolo de controle de rede (NCP). Uma negociação de PPP bem-sucedida abre primeiramente o estado do LCP e, em seguida, autentica e, finalmente, negocia o NCP. Parâmetros multilink, como Maximum receive reconstructed unit (MRRU), são estabelecidos durante a negociação LCP.

• debug ppp authentication - Exibe as mensagens de protocolo de autenticação PPP, incluindo os intercâmbios do pacote CHAP e intercâmbios de protocolo de autenticação de senha (PAP).

• debug ppp error - Exibe erros do protocolo e estatísticas de erros associados à negociação e operação da conexão PPP

Seguem algumas saídas de depuração das chamada bem-sucedidas (usando T1 CAS). Preste atenção às seções em negrito e comentários fornecidos nas saídas. Compare a saída que você obtém com o resultado mostrado abaixo.

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.

Um ping de ICMP para o correspondente remoto foi bem-sucedido.

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#

Veja a seguir algumas saídas de debugação das chamada bem-sucedidas (usando T1 PRI). Preste atenção às seções em negrito e comentários fornecidos nas saídas. Compare a saída que você obtém com o resultado mostrado abaixo.

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.

Um ping de ICMP para o correspondente remoto foi bem-sucedido.

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#   

Informações Relacionadas

• Digital Modem Network Module para Cisco 3640
• Suporte de T1 CAS para o Digital Modem Network Module para Cisco 3640
• Configurando o ISDN PRI e outras sinalizações em linhas E1 e T1
• Visão geral sobre interfaces, controladores e linhas usados para acesso discado
• Suporte Técnico - Cisco Systems