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Configuring PPP Callback over ISDN with an AAA Provided Callback String

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Atualizado:4 de Fevereiro de 2010
ID do documento:10321

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Sobre esta tradução

A Cisco traduziu este documento com a ajuda de tecnologias de tradução automática e humana para oferecer conteúdo de suporte aos seus usuários no seu próprio idioma, independentemente da localização. Observe que mesmo a melhor tradução automática não será tão precisa quanto as realizadas por um tradutor profissional. A Cisco Systems, Inc. não se responsabiliza pela precisão destas traduções e recomenda que o documento original em inglês (link fornecido) seja sempre consultado.

Introduction

Este documento fornece um exemplo de configuração para o retorno de chamada PPP entre dois roteadores Cisco.

Prerequisites

Requirements

Não existem requisitos específicos para este documento.

Componentes Utilizados

As informações neste documento são baseadas nestas versões de software e hardware:

  • Software Cisco IOS® versão 12.0(3)T ou posterior.

Observação: para configurar o retorno de chamada PPP com a ajuda de uma string de retorno de chamada atribuída a um servidor AAA, você precisa usar o comando dialer aaa, que está disponível no Cisco IOS Software Release 12.0(3)T ou posterior. No entanto, nas versões 12.1(4)T, 12.2(1)T e posteriores do Cisco IOS, esse comando não é necessário para o retorno de chamada PPP com uma string de retorno de chamada atribuída ao servidor AAA.

Observação: o comando dialer aaa só é suportado com o DDR legado (como mostrado na figura 1).

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

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

Informações de Apoio

O TACACS+ (servidor AAA) é usado para fornecer a string de discagem de retorno para o servidor de retorno de chamada. No entanto, você também pode usar RADIUS para fornecer a sequência de chamada de retorno. Para configurar o retorno de chamada PPP com autenticação, autorização e contabilização (AAA) locais, consulte Configurando o retorno de chamada PPP sobre ISDN.

Nesta configuração de exemplo, o retorno de chamada usa o PPP e os recursos especificados no RFC 1570. O retorno de chamada PPP através do circuito ISDN é concluído nesta ordem:

  1. O cliente de retorno de chamada inicia e ativa uma conexão ISDN ao roteador do servidor de retorno de chamada.

  2. O cliente de retorno de chamada e o servidor de retorno negociam o protocolo de controle de enlace (LCP - Link Control Protocol) PPP. Na negociação do LCP, o retorno de chamada é solicitado, negociado e acordado.

  3. O cliente de retorno de chamada e o servidor de retorno autenticam-se com o PPP Password Authentication Protocol (PAP) ou Challenge Handshake Authentication Protocol (CHAP). No entanto, você pode configurar o cliente de retorno de chamada para não autenticar o servidor de retorno de chamada, por meio do comando ppp authentication chap callin.

  4. O servidor de retorno de chamada obtém os atributos de retorno de chamada necessários, como a série de discagem de retorno (o número de telefone do cliente) do servidor AAA.

  5. Ambos os roteadores descartam a conexão ISDN.

  6. O servidor de retorno de chamada inicia o retorno de chamada para o cliente. Quando a chamada se conecta, os roteadores se autenticam e o link é estabelecido.

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 Command Lookup Tool (somente clientes registrados).

Diagrama de Rede

Este documento utiliza a seguinte configuração de rede:

Figura 1 – Diagrama da Rede

ppp-callback-aaa.gif

Configurações

Este documento utiliza as seguintes configurações:

  • Configuração do Freeware TACACS+

  • Configuração de RADIUS

  • Configuração RADIUS alternativa

  • Configuração do Tnt-buster (Servidor de Retorno de Chamada)

  • Configuração de Tremens (Cliente de Retorno de Chamada)

Configuração do Freeware TACACS+ 
user = tremens {
  default service = permit
  login = cleartext "cisco"
  chap = cleartext "cisco"
  
!--- CHAP password.

  service = ppp protocol = lcp {
  callback-dialstring = "6083"

 !--- Number to callback.

  send-secret = "cisco"
  }
  }

Você também pode usar o RADIUS como servidor AAA para fornecer os atributos de retorno de chamada em vez de TACACS+. Um exemplo da configuração RADIUS é fornecido aqui:

Configuração de RADIUS 
tremens         Auth-Type = Local, Password = "cisco"
                Service-Type = Framed-User,

 !--- Service-Type(6) is Framed User(4).

                Cisco-AVPair = "lcp:callback-dialstring=6083", 
                Cisco-AVPair = "lcp:send-secret=cisco"

Observação: na configuração RADIUS mostrada acima, o Cisco AVPair lcp:send-secret=cisco é necessário no momento da autenticação do retorno de chamada. Se não incluir este AVPair, você deve configurar o nome de usuário e a senha CHAP do roteador remoto localmente no servidor de chamada de retorno.

Observação: este documento trata principalmente do TACACS+. As depurações fornecidas neste documento não mostram um retorno de chamada iniciado por RADIUS.

Observação: na versão 12.1(7) do Cisco IOS, é possível usar o atributo 19 RADIUS da Internet Engineering Task Force (IETF) para o retorno de chamada da Microsoft analógico e ISDN. Nesse caso, não é necessário usar os Cisco AVPairs, mostrados na configuração anterior. Consulte o exemplo de configuração RADIUS alternativo mostrado aqui:

Configuração RADIUS alternativa 
tremens         Auth-Type = Local, Password = "cisco"
                Service-Type = callback framed
                
!--- Service-Type (6) is callback framed (4).

                
!--- Callback framed is also known as !--- Dialback-Framed-User.

                Callback =6083
                
!--- IETF RADIUS Callback attribute (19) with the phone !--- number for the callback.

Observação: as depurações RADIUS mostrarão o atributo 19 RADIUS IETF retornado ao servidor de chamada de retorno.

As configurações para os dois roteadores usados neste exemplo são mostradas aqui:

Tnt-buster (servidor de retorno de chamada) 
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Tnt-buster
!
boot system flash flash:c5300-i-mz.121-4
logging buffered 1000000 debugging
aaa new-model
aaa authentication login none none
aaa authentication ppp default group tacacs+ local

!--- AAA methods for PPP authentication.

aaa authorization network default group tacacs+

!--- AAA authorization methods for RADIUS implementation. !--- Replace TACACS+ with RADIUS in the statements above.

!
spe 1/0 1/23
 firmware location system:/ucode/microcom_firmware
!
resource-pool disable
!
ip subnet-zero
no ip domain-lookup
!
isdn switch-type primary-net5
!
controller E1 0

!--- E1 interface that accepts the initial call and performs the callback.

 clock source line primary
 pri-group timeslots 1-31
!
! 
 !--- irrelevant output has been omitted.

!
interface Loopback0
 ip address 2.2.2.2 255.255.255.255
!
interface Ethernet0
 ip address 10.200.20.42 255.255.255.0
!
interface Serial0:15

!--- D-channel for controller E1 0.

 no ip address
 encapsulation ppp
 dialer rotary-group 1

!--- Assign E1 0 to rotary-group 1 (which is necessary for dialout). !--- Rotary-group properties are defined in interface Dialer 1.

 isdn switch-type primary-net5
 no cdp enable
!
! 

!--- irrelevant output has been omitted.

!
!
interface Dialer1

!--- This is the interface for the dialer rotary-group 1 configuration.

 ip unnumbered Loopback0
 encapsulation ppp
 dialer in-band
 dialer aaa

!--- This allows AAA to retrieve the callback dial string via AAA servers.


!--- This command is required for callback attributes to be obtained !--- from the AAA server.

 dialer idle-timeout 60
 dialer enable-timeout 5

!--- The time (in seconds) between initial call disconnect and callback !--- initiation.

 dialer hold-queue 20

!--- This holds 20 packets destined for the remote destination until the !--- connection is made.

 dialer-group 1
 no peer default ip address

!--- The peer is not given an IP address from a pool. !--- IP pool can be defined if necessary.

 ppp callback accept

!--- Allows the interface to accept a callback request from a remote host.

 ppp authentication chap callin
!
ip route 0.0.0.0 0.0.0.0 10.200.20.1
no ip http server
!
dialer-list 1 protocol ip permit
tacacs-server host 10.200.20.134 key cisco

!--- The IP address and key of the TACACS+ server.

!
line con 0
 exec-timeout 0 0
 length 30
 transport input none
line 1 24
line aux 0
line vty 0 4
 no exec-banner
 exec-timeout 0 0
 login authentication none
!
end

Tremens (Cliente de Retorno de Chamada) 
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname tremens
!
username tnt-buster password 0 cisco

!--- Username and shared secret password used for CHAP authentication. !--- The AAA server must have this router hostname (tnt-buster) and !--- shared secret (cisco) configured.

!
ip subnet-zero
no ip finger
no ip domain-lookup
!
isdn switch-type basic-net3
!
interface Loopback0
 ip address 3.3.3.3 255.255.255.255
!
interface Ethernet0
 ip address 10.200.16.54 255.255.255.0
!
interface BRI0

!--- The interface used for dialin and dialout.

 no ip address
 encapsulation ppp
 dialer pool-member 1

!--- Assign BRI0 as member of dialer pool 1. !--- Dialer pool 1 is specified in interface Dialer 1.

 isdn switch-type basic-net3
 ppp authentication chap
!
interface Dialer1
 ip unnumbered Loopback0
 encapsulation ppp
 dialer pool 1

!--- Defines dialer pool 1. !--- BRI 0 is a member of this pool.

 dialer idle-timeout 60
 dialer string 8211

!--- The number to dial when dialing out for the initial call.

 dialer hold-queue 20

!--- This holds 20 packets destined for the remote destination until the !--- connection is made.

 dialer-group 1
 no peer default ip address
 no fair-queue
 no cdp enable
 ppp callback request

!--- Request PPP callback from the server.

 ppp authentication chap
!
ip route 2.2.2.2 255.255.255.255 Dialer1

!--- IP route for the dialer interface.

no ip http server
!
dialer-list 1 protocol ip permit
!
line con 0
 exec-timeout 0 0
 transport input none
line aux 0
line vty 0 4
 exec-timeout 0 0
 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 dialer interface type number —exibe informações gerais de diagnóstico para interfaces configuradas para DDR (dial-on-demand routing). Os endereços de origem e destino do pacote que iniciou a discagem são mostrados na linha de razão de discagem. Esse comando também exibe os temporizadores de conexão.

  • show isdn status —permite que você assegure que o roteador se comunique 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.

Troubleshoot

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

Consulte Referência de Comando de Depuração do Cisco IOS versão 12.0 para obter mais informações sobre comandos debug.

Comandos de Troubleshooting (Opcional)

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

Observação: antes de inserir o comando debug, consulte Informações importantes sobre os comandos debug.

  • debug isdn q931—mostra a configuração de chamada e o desligamento da conexão de rede ISDN (Camada 3).

  • debug dialer [events | packets ]—exibe informações de depuração DDR sobre os pacotes recebidos em uma interface de discador.

  • debug aaa authentication — exibe informações sobre autenticação AAA.

  • debug aaa authorization — exibe informações sobre a autorização AAA.

  • debug tacacs —exibe informações detalhadas de depuração associadas ao TACACS+.

  • debug ppp negotiation —exibe informações sobre o tráfego e as trocas PPP enquanto a negociação dos componentes PPP está em andamento, incluindo o LCP (Link Control Protocol), a autenticação e o NCP. Uma negociação de PPP bem-sucedida abrirá primeiramente o estado do LCP e, em seguida, autenticará e, finalmente, negociará o NCP.

  • debug ppp authentication —exibe as mensagens do protocolo de autenticação PPP, incluindo as trocas de pacotes CHAP (Challenge Authentication Protocol Protocolo de Autenticação de Desafio) e PAP (Password Authentication Protocol Protocolo de Autenticação de Senha). Se você observar uma falha, verifique se o nome de usuário e a senha do CHAP estão configurados corretamente.

  • debug callback —exibe eventos de retorno de chamada quando o roteador usa um modem e um script de bate-papo para retornar a chamada em uma linha de terminal. Como esse comando é para modems e scripts de bate-papo, ele não é usado nessa configuração.

Exemplo de saída de depuração 

tnt-buster#show debug
General OS:
  TACACS access control debugging is on
  AAA Authentication debugging is on
  AAA Authorization debugging is on
Dial on demand:
  Dial on demand events debugging is on
PPP:
  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 --> 7
  1 - - - - - - -  
tnt-buster#
*Oct 16 08:59:26.403: ISDN Se0:15: RX <-  SETUP pd = 8  callref = 0x4880

!--- incoming ISDN call setup message.

*Oct 16 08:59:26.403:   Sending Complete
*Oct 16 08:59:26.403:   Bearer Capability i = 0x8890
*Oct 16 08:59:26.403:   Channel ID i = 0xA1839A
*Oct 16 08:59:26.403:   Calling Party Number i = 0xA1, '6083', Plan:ISDN,
 Type:National

!--- Calling Party Number is configured in the callback string on !--- the AAA server.
 
*Oct 16 08:59:26.403:   Called Party Number i = 0x81, '211', Plan:ISDN,
 Type:Unknown
*Oct 16 08:59:26.407:   Locking Shift to Codeset 6
*Oct 16 08:59:26.407:   Codeset 6 IE 0x28  i = 'ISDN-EDU-4'
*Oct 16 08:59:26.407:   ISDN Se0:15: TX ->  CALL_PROC pd = 8  callref = 0xC880
*Oct 16 08:59:26.411:   Channel ID i = 0xA9839A
*Oct 16 08:59:26.415: %LINK-3-UPDOWN: Interface Serial0:25, changed state to up
*Oct 16 08:59:26.419: Se0:25 PPP: Treating connection as a callin
*Oct 16 08:59:26.419: Se0:25 PPP: Phase is ESTABLISHING, Passive Open
*Oct 16 08:59:26.419: Se0:25 LCP: State is Listen
*Oct 16 08:59:26.419: ISDN Se0:15: TX ->  CONNECT pd = 8  callref = 0xC880
*Oct 16 08:59:26.419: Channel ID i = 0xA9839A
*Oct 16 08:59:26.459: ISDN Se0:15: RX <-  CONNECT_ACK pd = 8  callref = 0x4880
*Oct 16 08:59:26.463: ISDN Se0:15: CALL_PROGRESS: CALL_CONNECTED call id 0x28,
 bchan 25, dsl 0
*Oct 16 08:59:26.551: Se0:25 LCP: I CONFREQ [Listen] id 126 len 18

!--- PPP LCP negotiation begins.

*Oct 16 08:59:26.555: Se0:25 LCP:    AuthProto CHAP (0x0305C22305)
*Oct 16 08:59:26.555: Se0:25 LCP:    MagicNumber 0x3E7BCBD2 (0x05063E7BCBD2)
*Oct 16 08:59:26.555: Se0:25 LCP:    Callback 0  (0x0D0300)
*Oct 16 08:59:26.555: Se0:25 AAA/AUTHOR/FSM: (0): LCP succeeds trivially
*Oct 16 08:59:26.555: Se0:25 LCP: O CONFREQ [Listen] id 1 len 15
*Oct 16 08:59:26.555: Se0:25 LCP:    AuthProto CHAP (0x0305C22305)
*Oct 16 08:59:26.555: Se0:25 LCP:    MagicNumber 0xE06953E4 (0x0506E06953E4)
*Oct 16 08:59:26.555: Se0:25 LCP: O CONFACK [Listen] id 126 len 18
*Oct 16 08:59:26.555: Se0:25 LCP:    AuthProto CHAP (0x0305C22305)
*Oct 16 08:59:26.555: Se0:25 LCP:    MagicNumber 0x3E7BCBD2 (0x05063E7BCBD2)
*Oct 16 08:59:26.555: Se0:25 LCP:    Callback 0  (0x0D0300)

!--- Callback option is acknowledged (CONFACKed).

*Oct 16 08:59:26.587: Se0:25 LCP: I CONFACK [ACKsent] id 1 len 15
*Oct 16 08:59:26.587: Se0:25 LCP:    AuthProto CHAP (0x0305C22305)
*Oct 16 08:59:26.587: Se0:25 LCP:    MagicNumber 0xE06953E4 (0x0506E06953E4)
*Oct 16 08:59:26.587: Se0:25 LCP: State is Open
*Oct 16 08:59:26.587: Se0:25 PPP: Phase is AUTHENTICATING, by both

!--- PPP Authentication begins.

*Oct 16 08:59:26.587: Se0:25 CHAP: O CHALLENGE id 1 len 31 from "tnt-buster"
*Oct 16 08:59:26.611: Se0:25 CHAP: I CHALLENGE id 93 len 28 from "tremens"
*Oct 16 08:59:26.611: Se0:25 CHAP: Waiting for peer to authenticate first
*Oct 16 08:59:26.623: Se0:25 CHAP: I RESPONSE id 1 len 28 from "tremens"
*Oct 16 08:59:26.623: AAA: parse name=Serial0:25 idb type=13 tty=-1
*Oct 16 08:59:26.623: AAA: name=Serial0:25 flags=0x51 type=1 shelf=0 slot=0
 adapter=0 port=0 channel=25
*Oct 16 08:59:26.623: AAA: parse name= idb type=-1 tty=-1
*Oct 16 08:59:26.623: AAA/MEMORY: create_user (0x6126C0AC) user='tremens'
 ruser='' port='Serial0:25' rem_addr='6083/211' authen_type=CHAP service=PPP
 priv=1
*Oct 16 08:59:26.623: AAA/AUTHEN/START (199889519): port='Serial0:25' list=''
 action=LOGIN service=PPP
*Oct 16 08:59:26.623: AAA/AUTHEN/START (199889519): using "default" list
*Oct 16 08:59:26.623: AAA/AUTHEN/START (199889519): Method=tacacs+ (tacacs+)

!--- Use TACACS+ as AAA method for the default list.
 
*Oct 16 08:59:26.623: TAC+: send AUTHEN/START packet ver=193 id=199889519
*Oct 16 08:59:26.623: TAC+: Using default tacacs server-group "tacacs+" list.
*Oct 16 08:59:26.623: TAC+: Opening TCP/IP to 10.200.20.134/49 timeout=5
*Oct 16 08:59:26.627: TAC+: Opened TCP/IP handle 0x610C4D40 to 10.200.20.134/49
*Oct 16 08:59:26.627: TAC+: 10.200.20.134 (199889519) AUTHEN/START/LOGIN/CHAP
 queued
*Oct 16 08:59:26.827: TAC+: (199889519) AUTHEN/START/LOGIN/CHAP processed
*Oct 16 08:59:26.827: TAC+: ver=193 id=199889519 received AUTHEN status = PASS
*Oct 16 08:59:26.827: AAA/AUTHEN (199889519): status = PASS

!--- AAA authentication succeeds.

*Oct 16 08:59:26.827: TAC+: Closing TCP/IP 0x610C4D40 connection to
 10.200.20.134/49
*Oct 16 08:59:26.827: Se0:25 AAA/AUTHOR/LCP: Authorize LCP
*Oct 16 08:59:26.827: Se0:25 AAA/AUTHOR/LCP (4028243213): Port='Serial0:25'
 list='' service=NET
*Oct 16 08:59:26.827: AAA/AUTHOR/LCP: Se0:25 (4028243213) user='tremens'
*Oct 16 08:59:26.827: Se0:25 AAA/AUTHOR/LCP (4028243213): send AV service=ppp
*Oct 16 08:59:26.827: Se0:25 AAA/AUTHOR/LCP (4028243213): send AV protocol=lcp
*Oct 16 08:59:26.827: Se0:25 AAA/AUTHOR/LCP (4028243213): found list "default"
*Oct 16 08:59:26.827: Se0:25 AAA/AUTHOR/LCP (4028243213): Method=tacacs+ 
(tacacs+)
*Oct 16 08:59:26.827: AAA/AUTHOR/TAC+: (4028243213): user=tremens
*Oct 16 08:59:26.827: AAA/AUTHOR/TAC+: (4028243213): send AV service=ppp
*Oct 16 08:59:26.827: AAA/AUTHOR/TAC+: (4028243213): send AV protocol=lcp
*Oct 16 08:59:26.827: TAC+: using previously set server 10.200.20.134 from
 group tacacs+
*Oct 16 08:59:26.827: TAC+: Opening TCP/IP to 10.200.20.134/49 timeout=5
*Oct 16 08:59:26.831: TAC+: Opened TCP/IP handle 0x61269588 to 10.200.20.134/49
*Oct 16 08:59:26.831: TAC+: Opened 10.200.20.134 index=1
*Oct 16 08:59:26.831: TAC+: 10.200.20.134 (4028243213) AUTHOR/START queued
*Oct 16 08:59:27.031: TAC+: (4028243213) AUTHOR/START processed
*Oct 16 08:59:27.031: TAC+: (4028243213): received author response status =
 PASS_ADD
*Oct 16 08:59:27.031: TAC+: Closing TCP/IP 0x61269588 connection to
 10.200.20.134/49
*Oct 16 08:59:27.031: Se0:25 AAA/AUTHOR (4028243213): Post authorization
 status = PASS_ADD
*Oct 16 08:59:27.031: Se0:25 AAA/AUTHOR/LCP: Processing AV service=ppp
*Oct 16 08:59:27.031: Se0:25 AAA/AUTHOR/LCP: Processing AV protocol=lcp
*Oct 16 08:59:27.031: Se0:25 AAA/AUTHOR/LCP: Processing AV callback-dialstring=
6083

!--- Callback dial string sent from the AAA server.

*Oct 16 08:59:27.031: Se0:25 AAA/AUTHOR/LCP: Processing AV send-secret=cisco
*Oct 16 08:59:27.031: Se0:25 CHAP: O SUCCESS id 1 len 4
*Oct 16 08:59:27.031: Se0:25 CHAP: Processing saved Challenge, id 93
*Oct 16 08:59:27.031: Se0:25 DDR: Authenticated host tremens with no matching
 dialer map
*Oct 16 08:59:27.031: AAA: parse name=Serial0:25 idb type=13 tty=-1
*Oct 16 08:59:27.031: AAA: name=Serial0:25 flags=0x51 type=1 shelf=0 slot=0
 adapter=0
 port=0 channel=25
*Oct 16 08:59:27.031: AAA: parse name= idb type=-1 tty=-1
*Oct 16 08:59:27.031: AAA/MEMORY: create_user (0x610DD96C) user='tremens'
 ruser='' port='Serial0:25' rem_addr='6083/211' authen_type=CHAP service=PPP
 priv=1
*Oct 16 08:59:27.035: AAA/AUTHEN/START (4099567767): port='Serial0:25'
 list='' action=SENDAUTH service=PPP
*Oct 16 08:59:27.035: AAA/AUTHEN/START (4099567767): using "default" list
*Oct 16 08:59:27.035: AAA/AUTHEN/START (4099567767): Method=tacacs+ (tacacs+)
*Oct 16 08:59:27.035: TAC+: Look for cached secret first for sendauth
*Oct 16 08:59:27.035: AAA/AUTHEN/SENDAUTH (4099567767): found cached secret
 for tremens
*Oct 16 08:59:27.035: AAA/AUTHEN (4099567767): status = PASS
*Oct 16 08:59:27.035: AAA/MEMORY: free_user (0x610DD96C) user='tremens'
 ruser='' port='Serial0:25' rem_addr='6083/211' authen_type=CHAP service=PPP
 priv=1
*Oct 16 08:59:27.035: Se0:25 CHAP: O RESPONSE id 93 len 31 from "tnt-buster"
*Oct 16 08:59:27.055: Se0:25 CHAP: I SUCCESS id 93 len 4

!--- CHAP is successful.

*Oct 16 08:59:27.055: FA0: Same state, 0
*Oct 16 08:59:27.055: DSES FA0: Session create
*Oct 16 08:59:27.055: AAA/MEMORY: dup_user (0x61069398) user='tremens'
 ruser='' port='Serial0:25' rem_addr='6083/211' authen_type=CHAP service=PPP
 priv=1 source='create callback'
*Oct 16 08:59:27.055: Se0:25 DDR: PPP callback Callback server starting to
 tremens 6083

!--- DDR starts PPP calback procedures.

*Oct 16 08:59:27.055: Se0:25 DDR: disconnecting call

!--- Call is disconnected.

*Oct 16 08:59:27.059: ISDN Se0:15: TX ->  DISCONNECT pd = 8  callref = 0xC880
*Oct 16 08:59:27.059:         Cause i = 0x8090 - Normal call clearing
*Oct 16 08:59:27.071: Se0:25 IPCP: PPP phase is AUTHENTICATING,
 discarding packet
*Oct 16 08:59:27.091: ISDN Se0:15: RX <-  RELEASE pd = 8  callref = 0x4880
*Oct 16 08:59:27.091: ISDN Se0:15: TX ->  RELEASE_COMP pd = 8 
 callref = 0xC880
*Oct 16 08:59:27.103: %LINK-3-UPDOWN: Interface Serial0:25,
 changed state to down
*Oct 16 08:59:27.103: Se0:25 PPP: Phase is TERMINATING
*Oct 16 08:59:27.103: Se0:25 LCP: State is Closed
*Oct 16 08:59:27.103: Se0:25 PPP: Phase is DOWN
*Oct 16 08:59:27.103: Se0:25 DDR: disconnecting call
*Oct 16 08:59:32.055: DDR: Callback timer expired

!--- Callback timer (5 seconds) expires.


!--- This is configured through the dialer enable-timeout 5 command.

*Oct 16 08:59:32.055: Di1 DDR: beginning callback to tremens 6083
*Oct 16 08:59:32.055: Se0:15 DDR: rotor dialout [priority]
*Oct 16 08:59:32.055: Se0:15 DDR: Dialing cause dialer session 0xFA0
*Oct 16 08:59:32.055: Se0:15 DDR: Attempting to dial 6083

!--- Callback number dialed.

*Oct 16 08:59:32.055: ISDN Se0:15: TX ->  SETUP pd = 8  callref = 0x0005
*Oct 16 08:59:32.055:         Bearer Capability i = 0x8890
*Oct 16 08:59:32.055:         Channel ID i = 0xA9839F
*Oct 16 08:59:32.055:         Called Party Number i = 0x81, '6083', Plan:ISDN,
 Type:Unknown
*Oct 16 08:59:32.095: ISDN Se0:15: RX <-  CALL_PROC pd = 8  callref = 0x8005
*Oct 16 08:59:32.095:         Channel ID i = 0xA9839F
*Oct 16 08:59:32.311: ISDN Se0:15: RX <-  CONNECT pd = 8  callref = 0x8005

!--- Call is connected.

*Oct 16 08:59:32.311:         Connected Number i = 0xA136303833
*Oct 16 08:59:32.315:         Locking Shift to Codeset 6
*Oct 16 08:59:32.315:         Codeset 6 IE 0x28  i = 'ISDN-EDU-4'
*Oct 16 08:59:32.323: %LINK-3-UPDOWN: Interface Serial0:30, changed state to up
*Oct 16 08:59:32.323: AAA/MEMORY: dup_user (0x612B7F70) user='tremens' ruser=''
 port='Serial0:25' rem_addr='6083/211' authen_type=CHAP service=PPP priv=1
 source='callback dialout'
*Oct 16 08:59:32.323: DDR: Freeing callback to tremens 6083
*Oct 16 08:59:32.323: DDR: removing callback, 0 packets unqueued and discarded
*Oct 16 08:59:32.323: AAA/MEMORY: free_user (0x61069398) user='tremens'
 ruser='' port='Serial0:25' rem_addr='6083/211' authen_type=CHAP service=PPP
 priv=1
*Oct 16 08:59:32.323: Se0:30 PPP: Treating connection as a callout

!--- PPP negotiation begins.

*Oct 16 08:59:32.323: Se0:30 PPP: Phase is ESTABLISHING, Active Open
*Oct 16 08:59:32.323: Se0:30 PPP: No remote authentication for callback
*Oct 16 08:59:32.327: Se0:30 AAA/AUTHOR/FSM: (0): LCP succeeds trivially
*Oct 16 08:59:32.327: Se0:30 LCP: O CONFREQ [Closed] id 5 len 10
*Oct 16 08:59:32.327: Se0:30 LCP:    MagicNumber 0xE0696A6F (0x0506E0696A6F)
*Oct 16 08:59:32.327: ISDN Se0:15: TX ->  CONNECT_ACK pd = 8  callref = 0x0005
*Oct 16 08:59:32.351: Se0:30 LCP: I CONFREQ [REQsent] id 127 len 15
*Oct 16 08:59:32.351: Se0:30 LCP:    AuthProto CHAP (0x0305C22305)
*Oct 16 08:59:32.351: Se0:30 LCP:    MagicNumber 0x3E7BE27C (0x05063E7BE27C)
*Oct 16 08:59:32.355: Se0:30 LCP: O CONFACK [REQsent] id 127 len 15
*Oct 16 08:59:32.355: Se0:30 LCP:    AuthProto CHAP (0x0305C22305)
*Oct 16 08:59:32.355: Se0:30 LCP:    MagicNumber 0x3E7BE27C (0x05063E7BE27C)
*Oct 16 08:59:32.359: Se0:30 LCP: I CONFACK [ACKsent] id 5 len 10
*Oct 16 08:59:32.359: Se0:30 LCP:    MagicNumber 0xE0696A6F (0x0506E0696A6F)
*Oct 16 08:59:32.359: Se0:30 LCP: State is Open
*Oct 16 08:59:32.359: Se0:30 PPP: Phase is AUTHENTICATING, by the peer

!--- Authentication begins.

*Oct 16 08:59:32.359: Se0:30 AAA/AUTHOR/LCP: Authorize LCP
*Oct 16 08:59:32.359: Se0:30 AAA/AUTHOR/LCP (190918816): Port='Serial0:25'
 list='' service=NET
*Oct 16 08:59:32.359: AAA/AUTHOR/LCP: Se0:30 (190918816) user='tremens'
*Oct 16 08:59:32.359: Se0:30 AAA/AUTHOR/LCP (190918816): send AV service=ppp
*Oct 16 08:59:32.359: Se0:30 AAA/AUTHOR/LCP (190918816): send AV protocol=lcp
*Oct 16 08:59:32.359: Se0:30 AAA/AUTHOR/LCP (190918816): found list "default"
*Oct 16 08:59:32.359: Se0:30 AAA/AUTHOR/LCP (190918816): Method=tacacs+
 (tacacs+)
*Oct 16 08:59:32.363: AAA/AUTHOR/TAC+: (190918816): user=tremens
*Oct 16 08:59:32.363: AAA/AUTHOR/TAC+: (190918816): send AV service=ppp
*Oct 16 08:59:32.363: AAA/AUTHOR/TAC+: (190918816): send AV protocol=lcp
*Oct 16 08:59:32.363: TAC+: using previously set server 10.200.20.134 from
 group tacacs+
*Oct 16 08:59:32.363: TAC+: Opening TCP/IP to 10.200.20.134/49 timeout=5
*Oct 16 08:59:32.363: TAC+: Opened TCP/IP handle 0x612B6A1C to 10.200.20.134/49
*Oct 16 08:59:32.363: TAC+: Opened 10.200.20.134 index=1
*Oct 16 08:59:32.363: TAC+: 10.200.20.134 (190918816) AUTHOR/START queued
*Oct 16 08:59:32.563: TAC+: (190918816) AUTHOR/START processed
*Oct 16 08:59:32.563: TAC+: (190918816): received author response status =
 PASS_ADD
*Oct 16 08:59:32.563: TAC+: Closing TCP/IP 0x612B6A1C connection to
 10.200.20.134/49
*Oct 16 08:59:32.563: Se0:30 AAA/AUTHOR (190918816): Post authorization
 status = PASS_ADD
*Oct 16 08:59:32.563: Se0:30 AAA/AUTHOR/LCP: Processing AV service=ppp
*Oct 16 08:59:32.563: Se0:30 AAA/AUTHOR/LCP: Processing AV protocol=lcp
*Oct 16 08:59:32.563: Se0:30 AAA/AUTHOR/LCP: Processing AV callback-dialstring=
6083
*Oct 16 08:59:32.563: Se0:30 AAA/AUTHOR/LCP: Processing AV send-secret=cisco
*Oct 16 08:59:32.563: Se0:30 CHAP: I CHALLENGE id 94 len 28 from "tremens"

!--- An incoming CHAP challenge is received.

*Oct 16 08:59:32.563: AAA: parse name=Serial0:30 idb type=13 tty=-1
*Oct 16 08:59:32.563: AAA: name=Serial0:30 flags=0x51 type=1 shelf=0 slot=0
 adapter=0 port=0 channel=30
*Oct 16 08:59:32.563: AAA: parse name= idb type=-1 tty=-1
*Oct 16 08:59:32.563: AAA/MEMORY: create_user (0x612B8098) user='tremens'
 ruser='' port='Serial0:30' rem_addr='6083/6083' authen_type=CHAP service=PPP
 priv=1
*Oct 16 08:59:32.567: AAA/AUTHEN/START (763006247): port='Serial0:30' list=''
 action=SENDAUTH service=PPP
*Oct 16 08:59:32.567: AAA/AUTHEN/START (763006247): using "default" list
*Oct 16 08:59:32.567: AAA/AUTHEN/START (763006247): Method=tacacs+ (tacacs+)
*Oct 16 08:59:32.567: TAC+: Look for cached secret first for sendauth
*Oct 16 08:59:32.567: AAA/AUTHEN/SENDAUTH (763006247): found cached secret for
 tremens
*Oct 16 08:59:32.567: AAA/AUTHEN (763006247): status = PASS
*Oct 16 08:59:32.567: AAA/MEMORY: free_user (0x612B8098) user='tremens'
 ruser='' port='Serial0:30' rem_addr='6083/6083' authen_type=CHAP service=PPP
 priv=1
*Oct 16 08:59:32.567: Se0:30 CHAP: O RESPONSE id 94 len 31 from "tnt-buster"
*Oct 16 08:59:32.587: Se0:30 CHAP: I SUCCESS id 94 len 4

!--- Authentication is successful.

*Oct 16 08:59:32.587: Se0:30 PPP: Phase is UP
*Oct 16 08:59:32.587: Se0:30 AAA/AUTHOR/FSM: (0): Can we start IPCP?
*Oct 16 08:59:32.587: Se0:30 AAA/AUTHOR/FSM (3211893880): Port='Serial0:25'
 list='' service=NET
*Oct 16 08:59:32.587: AAA/AUTHOR/FSM: Se0:30 (3211893880) user='tremens'
*Oct 16 08:59:32.587: Se0:30 AAA/AUTHOR/FSM (3211893880): send AV service=ppp
*Oct 16 08:59:32.587: Se0:30 AAA/AUTHOR/FSM (3211893880): send AV protocol=ip
*Oct 16 08:59:32.587: Se0:30 AAA/AUTHOR/FSM (3211893880): found list "default"
*Oct 16 08:59:32.587: Se0:30 AAA/AUTHOR/FSM (3211893880): Method=tacacs+
 (tacacs+)
*Oct 16 08:59:32.587: AAA/AUTHOR/TAC+: (3211893880): user=tremens
*Oct 16 08:59:32.587: AAA/AUTHOR/TAC+: (3211893880): send AV service=ppp
*Oct 16 08:59:32.587: AAA/AUTHOR/TAC+: (3211893880): send AV protocol=ip
*Oct 16 08:59:32.587: TAC+: using previously set server 10.200.20.134 from group
 tacacs+
*Oct 16 08:59:32.587: TAC+: Opening TCP/IP to 10.200.20.134/49 timeout=5
*Oct 16 08:59:32.591: TAC+: Opened TCP/IP handle 0x612B6C80 to 10.200.20.134/49
*Oct 16 08:59:32.591: TAC+: Opened 10.200.20.134 index=1
*Oct 16 08:59:32.591: TAC+: 10.200.20.134 (3211893880) AUTHOR/START queued
*Oct 16 08:59:32.791: TAC+: (3211893880) AUTHOR/START processed
*Oct 16 08:59:32.791: TAC+: (3211893880): received author response status =
 PASS_ADD
*Oct 16 08:59:32.791: TAC+: Closing TCP/IP 0x612B6C80 connection to
 10.200.20.134/49
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR (3211893880): Post authorization
 status = PASS_ADD
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/FSM: We can start IPCP

!--- IPCP negotiation begins.

*Oct 16 08:59:32.791: Se0:30 IPCP: O CONFREQ [Closed] id 5 len 10
*Oct 16 08:59:32.791: Se0:30 IPCP:    Address 2.2.2.2 (0x030602020202)
*Oct 16 08:59:32.791: Se0:30 IPCP: I CONFREQ [REQsent] id 111 len 10
*Oct 16 08:59:32.791: Se0:30 IPCP:    Address 3.3.3.3 (0x030603030303)
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP: Start.  Her address 3.3.3.3,
 we want 0.0.0.0
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP (3713413027): Port='Serial0:25'
 list='' service=NET
*Oct 16 08:59:32.791: AAA/AUTHOR/IPCP: Se0:30 (3713413027) user='tremens'
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP (3713413027): send AV service=ppp
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP (3713413027): send AV protocol=ip
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP (3713413027): send AV addr*3.3.3.3
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP (3713413027): found list "default"
*Oct 16 08:59:32.791: Se0:30 AAA/AUTHOR/IPCP (3713413027): Method=tacacs+
 (tacacs+)
*Oct 16 08:59:32.795: AAA/AUTHOR/TAC+: (3713413027): user=tremens
*Oct 16 08:59:32.795: AAA/AUTHOR/TAC+: (3713413027): send AV service=ppp
*Oct 16 08:59:32.795: AAA/AUTHOR/TAC+: (3713413027): send AV protocol=ip
*Oct 16 08:59:32.795: AAA/AUTHOR/TAC+: (3713413027): send AV addr*3.3.3.3

!--- AAA Attribute Value Pairs.

*Oct 16 08:59:32.795: TAC+: using previously set server 10.200.20.134 from group
 tacacs+
*Oct 16 08:59:32.795: TAC+: Opening TCP/IP to 10.200.20.134/49 timeout=5
*Oct 16 08:59:32.795: TAC+: Opened TCP/IP handle 0x61269588 to 10.200.20.134/49
*Oct 16 08:59:32.795: TAC+: Opened 10.200.20.134 index=1
*Oct 16 08:59:32.795: TAC+: 10.200.20.134 (3713413027) AUTHOR/START queued
*Oct 16 08:59:32.995: TAC+: (3713413027) AUTHOR/START processed
*Oct 16 08:59:32.995: TAC+: (3713413027): received author response status =
 PASS_ADD
*Oct 16 08:59:32.995: TAC+: Closing TCP/IP 0x61269588 connection to
 10.200.20.134/49
*Oct 16 08:59:32.995: Se0:30 AAA/AUTHOR (3713413027): Post authorization
 status = PASS_ADD
*Oct 16 08:59:32.995: Se0:30 AAA/AUTHOR/IPCP: Processing AV service=ppp
*Oct 16 08:59:32.995: Se0:30 AAA/AUTHOR/IPCP: Processing AV protocol=ip
*Oct 16 08:59:32.995: Se0:30 AAA/AUTHOR/IPCP: Processing AV addr*3.3.3.3
*Oct 16 08:59:32.995: Se0:30 AAA/AUTHOR/IPCP: Authorization succeeded
*Oct 16 08:59:32.995: Se0:30 AAA/AUTHOR/IPCP: Done.  Her address 3.3.3.3,
 we want 3.3.3.3
*Oct 16 08:59:32.995: Se0:30 IPCP: O CONFACK [REQsent] id 111 len 10
*Oct 16 08:59:32.995: Se0:30 IPCP:    Address 3.3.3.3 (0x030603030303)
*Oct 16 08:59:32.995: Se0:30 IPCP: I CONFACK [ACKsent] id 5 len 10
*Oct 16 08:59:32.995: Se0:30 IPCP:    Address 2.2.2.2 (0x030602020202)
*Oct 16 08:59:32.995: Se0:30 IPCP: State is Open
*Oct 16 08:59:32.999: Se0:30 DDR: dialer protocol up
*Oct 16 08:59:32.999: Se0:30: Call connected, 0 packets unqueued, 0 transmitted,
 0 discarded
*Oct 16 08:59:32.999: Di1 IPCP: Install route to 3.3.3.3

!--- Route is installed to remote device.

*Oct 16 08:59:33.587: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0:30,
 changed state to up
*Oct 16 08:59:38.323: %ISDN-6-CONNECT: Interface Serial0:30 is now connected
 to 6083 unknown

!--- Call is Connected.

Informações Relacionadas

Histórico de revisões

Revisão Data de publicação Comentários
1.0
04-Feb-2010
Versão inicial

Colaboração de

  • jveyne
    sloos

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