Configurando GRE e IPSec com IPX Routing

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Atualizado:28 de dezembro de 2005
ID do documento:14125

Linguagem imparcial

O conjunto de documentação deste produto faz o possível para usar uma linguagem imparcial. Para os fins deste conjunto de documentação, a imparcialidade é definida como uma linguagem que não implica em discriminação baseada em idade, deficiência, gênero, identidade racial, identidade étnica, orientação sexual, status socioeconômico e interseccionalidade. Pode haver exceções na documentação devido à linguagem codificada nas interfaces de usuário do software do produto, linguagem usada com base na documentação de RFP ou linguagem usada por um produto de terceiros referenciado. Saiba mais sobre como a Cisco está usando a linguagem inclusiva.

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 ilustra uma configuração de Segurança IP (IPSec - IP Security) usando um túnel GRE (Generic Routing Encapsulation) entre dois roteadores. O IPSec pode ser usado para criptografar túneis GRE para fornecer segurança de camada de rede para tráfego não IP, como o Novell Internetwork Packet Exchange (IPX), AppleTalk e assim por diante. O túnel GRE neste exemplo é usado puramente para transportar tráfego não IP. Portanto, o túnel não tem nenhum endereço IP configurado. Aqui estão algumas considerações de configuração:

  • Com o software IOS 12.2(13)T e posterior (software T-train com maior número, 12.3 e posterior), o mapa de criptografia IPSec configurado só precisa ser aplicado à interface física e não precisa mais ser aplicado na interface de túnel GRE. Em versões de software anteriores a esta versão, os mapas de criptografia IPSec precisam ser aplicados à interface do túnel e à interface física. Ter o mapa de criptografia na interface física e de túnel ao usar o software 12.2.1(13)T e posterior ainda deve funcionar; no entanto, a Cisco recomenda que você o aplique apenas na interface física.

  • Certifique-se de que o túnel GRE funcione antes de aplicar os mapas de criptografia.

  • A lista de controle de acesso de criptografia (ACL) deve ter o GRE como o protocolo permitido. Por exemplo, access-list 101 permit gre host #.#.#.# host #.#.#.#.# (onde o primeiro número de host é o endereço IP da origem do túnel do túnel GRE e o segundo número de host é o endereço IP do destino do túnel).

  • Use os endereços IP da interface física (ou da interface de loopback) para identificar os pares do Internet Key Exchange (IKE).

  • Em certas versões anteriores da versão do Cisco IOS, a switching rápida na interface do túnel deve ser desabilitada para que funcione, devido a um bug. Desative a comutação rápida na interface do túnel. Você pode visualizar os detalhes do bug para este problema no CSCdm10376 (somente clientes registrados) .

Antes de Começar

Prerequisites

Antes de tentar utilizar esta configuração, verifique se os seguintes pré-requisitos são atendidos:

Componentes Utilizados

As informações neste documento são baseadas nas versões de software e hardware abaixo.

  • Software Cisco IOS® versão 12.2(7)

  • Cisco 3600 Series Routers

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.

Conventions

Consulte as Convenções de Dicas Técnicas da Cisco para obter mais informações sobre convenções de documentos.

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 instalação de rede mostrada no diagrama abaixo.

33.gif

Configurações

Este documento utiliza as configurações mostradas abaixo.

Roteador 1 
Current configuration: 1300 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router1
!
ip subnet-zero
!

 !--- Enables IPX routing.

ipx routing 00e0.b064.258e
!

 !--- Defines the IKE policy identifying the parameters for building IKE SAs.


crypto isakmp policy 10
 authentication pre-share
 group 2  
 lifetime 3600

!--- Defines the pre-shared key for the remote peer.

crypto isakmp key cisco address 200.1.1.1      
!

!--- Defines the transform set to be used for IPSec SAs.

crypto ipsec transform-set tunnelset esp-des esp-md5-hmac 
!

!--- Configures the router to use the address of Loopback0 interface !--- for IKE and IPSec traffic.

crypto map toBB local-address Loopback0

!--- Defines a crypto map to be used for establishing IPSec SAs.


crypto map toBB 10 ipsec-isakmp   
 set peer 200.1.1.1
 set transform-set tunnelset 
 match address 101
!
interface Loopback0
 ip address 100.1.1.1 255.255.255.0
!

!--- Configures a GRE tunnel for transporting IPX traffic.

interface Tunnel0
 no ip address
 
ipx network CC
 tunnel source Serial1/0
 tunnel destination 150.0.0.2

!
interface Serial1/0
 ip address 150.0.0.1 255.255.255.0

 !--- Applies the crypto map to the physical interface used !--- for carrying GRE tunnel traffic.

 crypto map toBB
!
interface Ethernet3/0
 ip address 175.1.1.1 255.255.255.0
ipx network AA

!--- Output suppressed.

ip classless
ip route 0.0.0.0 0.0.0.0 150.0.0.2
no ip http server
!

!--- Configures GRE tunnel traffic to be encrypted using IPSec.

access-list 101 permit gre host 150.0.0.1 host 150.0.0.2
!
line con 0
 transport input none
line aux 0
line vty 0 4
 login
!         
end

Roteador 2 
Current configuration:1525 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router2
!
ip subnet-zero
!

!--- Enables IPX routing.

ipx routing 0010.7b37.c8ae
!

 !--- Defines the IKE policy identifying the parameters for building IKE SAs.


crypto isakmp policy 10
 authentication pre-share
 group 2  
 lifetime 3600

 !--- Defines the pre-shared key for the remote peer.

crypto isakmp key cisco address 100.1.1.1      
!

 !--- Defines the transform set to be used for IPSec SAs.

crypto ipsec transform-set tunnelset esp-des esp-md5-hmac 
!

 !--- Configures the router to use the address of Loopback0 interface !--- for IKE and IPSec traffic.

crypto map toAA local-address Loopback0

 !--- Defines a crypto map to be used for establishing IPSec SAs.


crypto map toAA 10 ipsec-isakmp   
 set peer 100.1.1.1
 set transform-set tunnelset 
 match address 101
!
interface Loopback0
 ip address 200.1.1.1 255.255.255.0
!

 !--- Configures a GRE tunnel for transporting IPX traffic

interface Tunnel0
 no ip address
 
 ipx network CC
 tunnel source Serial3/0
 tunnel destination 150.0.0.1
!
interface Ethernet2/0
 ip address 75.1.1.1 255.255.255.0
 ipx network BB
!
interface Serial3/0
 ip address 150.0.0.2 255.255.255.0
 clockrate 9600

 !--- Applies the crypto map to the physical interface used !--- for carrying GRE tunnel traffic.

 crypto map toAA
!

!--- Output suppressed.

ip classless
ip route 0.0.0.0 0.0.0.0 150.0.0.1
no ip http server
!

 !--- Configures GRE tunnel traffic to be encrypted using IPSec.

access-list 101 permit gre host 150.0.0.2 host 150.0.0.1
!
line con 0
 transport input none
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 ipx interface —Exibe o status e os parâmetros das interfaces IPX configuradas no dispositivo, como a rede IPX e o endereço do nó.

  • show ipx route —Exibe o conteúdo da tabela de roteamento IPX.

  • show crypto isakmp sa —Mostra as associações de segurança da fase 1 exibindo a SA IKE do roteador. O estado exibido deve ser QM_IDLE para que uma SA IKE seja considerada ativa e funcional.

  • show crypto ipsec sa —Mostra as associações de segurança da fase 2 exibindo uma lista detalhada das SAs IPSec ativas do roteador.

  • show crypto map —Exibe os mapas de criptografia configurados no roteador juntamente com seus detalhes, como listas de acesso de criptografia, conjuntos de transformação, peers etc.

  • show crypto engine connections ative — Exibe uma lista de SAs ativas com suas interfaces, transformações e contadores associados.

Exemplo de saída de show

Esta seção captura as saídas do comando show no dispositivo Router1 quando o ping IPX é executado no Router1 destinado ao Router2. As saídas no Roteador 2 são semelhantes. Os parâmetros-chave na saída são indicados em negrito. Para obter explicações sobre as saídas do comando, consulte o documento Troubleshooting de Segurança IP - Understanding and Using debug Commands.

Router1#show ipx interface ethernet 3/0
Ethernet3/0 is up, line protocol is up
  IPX address is AA.00b0.64cb.eab1, NOVELL-ETHER [up]
  Delay of this IPX network, in ticks is 1 throughput 0 link delay 0
  IPXWAN processing not enabled on this interface.

!--- Output suppressed.


Router2#show ipx interface ethernet 2/0
Ethernet2/0 is up, line protocol is up
  IPX address is BB.0002.16ae.c161, NOVELL-ETHER [up]
  Delay of this IPX network, in ticks is 1 throughput 0 link delay 0
  IPXWAN processing not enabled on this interface.

!--- Output suppressed.


Router1#show ipx route
Codes: C - Connected primary network,    c - Connected secondary network
       S - Static, F - Floating static, L - Local (internal), W - IPXWAN
       R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
       s - seconds, u - uses, U - Per-user static/Unknown, H - Hold-down

3 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.

No default route known.

C         AA (NOVELL-ETHER),  Et3/0
C         CC (TUNNEL),        Tu0
R         BB [151/01] via       CC.0010.7b37.c8ae,   56s, Tu0

Router2#show ipx route
Codes: C - Connected primary network,    c - Connected secondary network
       S - Static, F - Floating static, L - Local (internal), W - IPXWAN
       R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
       s - seconds, u - uses, U - Per-user static/Unknown, H - Hold-down

3 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.

No default route known.

C         BB (NOVELL-ETHER),  Et2/0
C         CC (TUNNEL),        Tu0
R         AA [151/01] via       CC.00e0.b064.258e,    8s, Tu0

Router1#ping ipx BB.0010.7b37.c8ae

Type escape sequence to abort.
Sending 5, 100-byte IPX Novell Echoes to BB.0002.16ae.c161, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 52/53/56 ms

Router2#ping ipx  AA.00b0.64cb.eab1

Type escape sequence to abort.
Sending 5, 100-byte IPX Novell Echoes to AA.00b0.64cb.eab1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 52/53/56 ms


Router1#show crypto isakmp sa
dst             src             state           conn-id    slot
200.1.1.1       100.1.1.1       QM_IDLE               5       0


Router1#show crypto ipsec sa detail 

interface: Serial1/0
    Crypto map tag: toBB, local addr. 100.1.1.1

   local  ident (addr/mask/prot/port): (150.0.0.1/255.255.255.255/47/0)
   remote ident (addr/mask/prot/port): (150.0.0.2/255.255.255.255/47/0)
   current_peer: 200.1.1.1
     PERMIT, flags={origin_is_acl,}
    #pkts encaps: 343, #pkts encrypt: 343, #pkts digest 343
    #pkts decaps: 343, #pkts decrypt: 343, #pkts verify 343
    #pkts compressed: 0, #pkts decompressed: 0
    #pkts not compressed: 0, #pkts compr. failed: 0, #pkts decompress failed: 0
    #pkts no sa (send) 1, #pkts invalid sa (rcv) 0
    #pkts encaps failed (send) 0, #pkts decaps failed (rcv) 0
    #pkts invalid prot (recv) 0, #pkts verify failed: 0
    #pkts invalid identity (recv) 0, #pkts invalid len (rcv) 0
    #pkts replay rollover (send): 0, #pkts replay rollover (rcv) 0
    ##pkts replay failed (rcv): 0
    #pkts internal err (send): 0, #pkts internal err (recv) 0

     local crypto endpt.: 100.1.1.1, remote crypto endpt.: 200.1.1.1
     path mtu 1500, ip mtu 1500, ip mtu interface Serial1/0
     current outbound spi: CB6F6DA6

     inbound esp sas:
      spi: 0xFD6F387(265745287)
        transform: esp-des esp-md5-hmac ,
        in use settings ={Tunnel, }
        slot: 0, conn id: 2010, flow_id: 11, crypto map: toBB
        sa timing: remaining key lifetime (k/sec): (4607994/1892)
        IV size: 8 bytes
        replay detection support: Y

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0xCB6F6DA6(3413077414)
        transform: esp-des esp-md5-hmac ,
        in use settings ={Tunnel, }
        slot: 0, conn id: 2011, flow_id: 12, crypto map: toBB
        sa timing: remaining key lifetime (k/sec): (4607994/1892)
        IV size: 8 bytes
        replay detection support: Y

     outbound ah sas:

     outbound pcp sas:



Router1#show crypto map
Crypto Map: "toBB" idb: Loopback0 local address: 100.1.1.1

Crypto Map "toBB" 10 ipsec-isakmp
        Peer = 200.1.1.1
        Extended IP access list 101
            access-list 101 permit gre host 150.0.0.1 host 150.0.0.2
        Current peer: 200.1.1.1
        Security association lifetime: 4608000 kilobytes/3600 seconds
        PFS (Y/N): N
        Transform sets={ tunnelset, }
        Interfaces using crypto map toBB:
                Serial1/0
 


Router1#show crypto engine connections active

  ID Interface            IP-Address      State  Algorithm           Encrypt  Decrypt
   5 <none>               <none>          set    HMAC_SHA+DES_56_CB        0        0
2010 Serial1/0            150.0.0.1       set    HMAC_MD5+DES_56_CB        0       40
2011 Serial1/0            150.0.0.1       set    HMAC_MD5+DES_56_CB       45        0

Troubleshoot

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

Comandos para Troubleshooting

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

Exemplo de saída de depuração

Esta seção captura as saídas do comando debug nos roteadores configurados com IPSec. O comando ping IPX é executado no roteador 1 destinado ao roteador 2.

Router1 

Router1#show debug
Cryptographic Subsystem:
  Crypto ISAKMP debugging is on
  Crypto Engine debugging is on
  Crypto IPSEC debugging is on
Router1#

!--- GRE traffic matching crypto ACL triggers IPSec processing

*Mar  2 00:41:17.593: IPSEC(sa_request): ,
  (key eng. msg.) OUTBOUND local= 100.1.1.1, remote= 200.1.1.1,
    local_proxy= 150.0.0.1/255.255.255.255/47/0 (type=1),
    remote_proxy= 150.0.0.2/255.255.255.255/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0x9AAD0079(2595029113), conn_id= 0, keysize= 0, flags= 0x400C
*Mar  2 00:41:17.597: ISAKMP: received ke message (1/1)

!--- IKE uses UDP port 500, begins main mode exchange.

*Mar  2 00:41:17.597: ISAKMP: local port 500, remote port 500
*Mar  2 00:41:17.597: ISAKMP (0:1): beginning Main Mode exchange
*Mar  2 00:41:17.597: ISAKMP (0:1): sending packet to 200.1.1.1 (I) MM_NO_STATE
*Mar  2 00:41:17.773: ISAKMP (0:1): received packet from 200.1.1.1 (I) MM_NO_STATE
*Mar  2 00:41:17.773: ISAKMP (0:1): processing SA payload. message ID = 0
*Mar  2 00:41:17.773: ISAKMP (0:1): found peer pre-shared key matching 200.1.1.1
*Mar  2 00:41:17.773: ISAKMP (0:1): Checking ISAKMP transform 1 against priority 10 policy

!--- IKE SAs are negotiated.

*Mar  2 00:41:17.773: ISAKMP:      encryption DES-CBC
*Mar  2 00:41:17.773: ISAKMP:      hash SHA
*Mar  2 00:41:17.773: ISAKMP:      default group 2
*Mar  2 00:41:17.773: ISAKMP:      auth pre-share
*Mar  2 00:41:17.773: ISAKMP:      life type in seconds
*Mar  2 00:41:17.773: ISAKMP:      life duration (basic) of 3600
*Mar  2 00:41:17.773: ISAKMP (0:1): atts are acceptable. Next payload is 0
*Mar  2 00:41:17.773: CryptoEngine0: generate alg parameter
*Mar  2 00:41:17.905: CRYPTO_ENGINE: Dh phase 1 status: 0
*Mar  2 00:41:17.905: CRYPTO_ENGINE: Dh phase 1 status: 0
*Mar  2 00:41:17.905: ISAKMP (0:1): SA is doing pre-shared key authentication using id type ID_IPV4_
ADDR
*Mar  2 00:41:17.905: ISAKMP (0:1): sending packet to 200.1.1.1 (I) MM_SA_SETUP
*Mar  2 00:41:18.149: ISAKMP (0:1): received packet from 200.1.1.1 (I) MM_SA_SETUP
*Mar  2 00:41:18.153: ISAKMP (0:1): processing KE payload. message ID = 0
*Mar  2 00:41:18.153: CryptoEngine0: generate alg parameter
*Mar  2 00:41:18.317: ISAKMP (0:1): processing NONCE payload. message ID = 0
*Mar  2 00:41:18.317: ISAKMP (0:1): found peer pre-shared key matching 200.1.1.1
*Mar  2 00:41:18.317: CryptoEngine0: create ISAKMP SKEYID for conn id 1
*Mar  2 00:41:18.321: ISAKMP (0:1): SKEYID state generated
*Mar  2 00:41:18.321: ISAKMP (0:1): processing vendor id payload
*Mar  2 00:41:18.321: ISAKMP (0:1): speaking to another IOS box!
*Mar  2 00:41:18.321: ISAKMP (1): ID payload
        next-payload : 8
        type         : 1
        protocol     : 17
        port         : 500
        length       : 8
*Mar  2 00:41:18.321: ISAKMP (1): Total payload length: 12
*Mar  2 00:41:18.321: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:41:18.321: ISAKMP (0:1): sending packet to 200.1.1.1 (I) MM_KEY_EXCH
*Mar  2 00:41:18.361: ISAKMP (0:1): received packet from 200.1.1.1 (I) MM_KEY_EXCH
*Mar  2 00:41:18.361: ISAKMP (0:1): processing ID payload. message ID = 0
*Mar  2 00:41:18.361: ISAKMP (0:1): processing HASH payload. message ID = 0
*Mar  2 00:41:18.361: CryptoEngine0: generate hmac context for conn id 1

!--- Peer is authenticated.

*Mar  2 00:41:18.361: ISAKMP (0:1): SA has been authenticated with 200.1.1.1

!--- Begins quick mode exchange.

*Mar  2 00:41:18.361: ISAKMP (0:1): beginning Quick Mode exchange, M-ID of -2078851837
*Mar  2 00:41:18.365: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:41:18.365: ISAKMP (0:1): sending packet to 200.1.1.1 (I) QM_IDLE
*Mar  2 00:41:18.365: CryptoEngine0: clear dh number for conn id 1
*Mar  2 00:41:18.681: ISAKMP (0:1): received packet from 200.1.1.1 (I) QM_IDLE
*Mar  2 00:41:18.681: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:41:18.685: ISAKMP (0:1): processing HASH payload. message ID = -2078851837
*Mar  2 00:41:18.685: ISAKMP (0:1): processing SA payload. message ID = -2078851837

!--- Negotiates IPSec SA.

*Mar  2 00:41:18.685: ISAKMP (0:1): Checking IPSec proposal 1
*Mar  2 00:41:18.685: ISAKMP: transform 1, ESP_DES
*Mar  2 00:41:18.685: ISAKMP:   attributes in transform:
*Mar  2 00:41:18.685: ISAKMP:      encaps is 1
*Mar  2 00:41:18.685: ISAKMP:      SA life type in seconds
*Mar  2 00:41:18.685: ISAKMP:      SA life duration (basic) of 3600
*Mar  2 00:41:18.685: ISAKMP:      SA life type in kilobytes
*Mar  2 00:41:18.685: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
*Mar  2 00:41:18.685: ISAKMP:      authenticator is HMAC-MD5
*Mar  2 00:41:18.685: validate proposal 0
*Mar  2 00:41:18.685: ISAKMP (0:1): atts are acceptable.
*Mar  2 00:41:18.685: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 100.1.1.1, remote= 200.1.1.1,
    local_proxy= 150.0.0.1/255.255.255.255/47/0 (type=1),
    remote_proxy= 150.0.0.2/255.255.255.255/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4
*Mar  2 00:41:18.689: validate proposal request 0
*Mar  2 00:41:18.689: ISAKMP (0:1): processing NONCE payload. message ID = -2078851837
*Mar  2 00:41:18.689: ISAKMP (0:1): processing ID payload. message ID = -2078851837
*Mar  2 00:41:18.689: ISAKMP (0:1): processing ID payload. message ID = -2078851837
*Mar  2 00:41:18.689: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:41:18.689: ipsec allocate flow 0
*Mar  2 00:41:18.689: ipsec allocate flow 0

!--- IPSec SAs are generated for inbound and outbound traffic.

*Mar  2 00:41:18.693: ISAKMP (0:1): Creating IPSec SAs
*Mar  2 00:41:18.693:         inbound SA from 200.1.1.1 to 100.1.1.1
        (proxy 150.0.0.2 to 150.0.0.1)
*Mar  2 00:41:18.693:         has spi 0x9AAD0079 and conn_id 2000 and flags 4
*Mar  2 00:41:18.693:         lifetime of 3600 seconds
*Mar  2 00:41:18.693:         lifetime of 4608000 kilobytes
*Mar  2 00:41:18.693:         outbound SA from 100.1.1.1       to 200.1.1.1       (proxy 150.0.0.1
     to 150.0.0.2      )
*Mar  2 00:41:18.693:         has spi -1609905338 and conn_id 2001 and flags C
*Mar  2 00:41:18.693:         lifetime of 3600 seconds
*Mar  2 00:41:18.693:         lifetime of 4608000 kilobytes
*Mar  2 00:41:18.697: ISAKMP (0:1): sending packet to 200.1.1.1 (I) QM_IDLE
*Mar  2 00:41:18.697: ISAKMP (0:1): deleting node -2078851837 error FALSE reason ""
*Mar  2 00:41:18.697: IPSEC(key_engine): got a queue event...
*Mar  2 00:41:18.697: IPSEC(initialize_sas): ,
  (key eng. msg.) INBOUND local= 100.1.1.1, remote= 200.1.1.1,
    local_proxy= 150.0.0.1/0.0.0.0/47/0 (type=1),
    remote_proxy= 150.0.0.2/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0x9AAD0079(2595029113), conn_id= 2000, keysize= 0, flags= 0x4
*Mar  2 00:41:18.697: IPSEC(initialize_sas): ,
  (key eng. msg.) OUTBOUND local= 100.1.1.1, remote= 200.1.1.1,
    local_proxy= 150.0.0.1/0.0.0.0/47/0 (type=1),
    remote_proxy= 150.0.0.2/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0xA00ACB46(2685061958), conn_id= 2001, keysize= 0, flags= 0xC
*Mar  2 00:41:18.697: IPSEC(create_sa): sa created,
  (sa) sa_dest= 100.1.1.1, sa_prot= 50,
    sa_spi= 0x9AAD0079(2595029113),
    sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2000
*Mar  2 00:41:18.701: IPSEC(create_sa): sa created,
  (sa) sa_dest= 200.1.1.1, sa_prot= 50,
    sa_spi= 0xA00ACB46(2685061958),
    sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2001

Router1#

Roteador 2 

Router2#show debug

Cryptographic Subsystem:
  Crypto ISAKMP debugging is on
  Crypto Engine debugging is on
  Crypto IPSEC debugging is on
Router2#

!--- IKE processing begins here.

*Mar  2 00:30:26.093: ISAKMP (0:0): received packet from 100.1.1.1 (N) NEW SA
*Mar  2 00:30:26.093: ISAKMP: local port 500, remote port 500
*Mar  2 00:30:26.093: ISAKMP (0:1): processing SA payload. message ID = 0
*Mar  2 00:30:26.093: ISAKMP (0:1): found peer pre-shared key matching 100.1.1.1

!--- IKE SAs are negotiated.

*Mar  2 00:30:26.093: ISAKMP (0:1): Checking ISAKMP transform 1 against priority 10 policy
*Mar  2 00:30:26.093: ISAKMP:      encryption DES-CBC
*Mar  2 00:30:26.093: ISAKMP:      hash SHA
*Mar  2 00:30:26.093: ISAKMP:      default group 2
*Mar  2 00:30:26.093: ISAKMP:      auth pre-share
*Mar  2 00:30:26.093: ISAKMP:      life type in seconds
*Mar  2 00:30:26.093: ISAKMP:      life duration (basic) of 3600
*Mar  2 00:30:26.093: ISAKMP (0:1): atts are acceptable. Next payload is 0
*Mar  2 00:30:26.097: CryptoEngine0: generate alg parameter
*Mar  2 00:30:26.229: CRYPTO_ENGINE: Dh phase 1 status: 0
*Mar  2 00:30:26.229: CRYPTO_ENGINE: Dh phase 1 status: 0
*Mar  2 00:30:26.229: ISAKMP (0:1): SA is doing pre-shared key authentication using id type ID_IPV4_
ADDR
*Mar  2 00:30:26.229: ISAKMP (0:1): sending packet to 100.1.1.1 (R) MM_SA_SETUP
*Mar  2 00:30:26.417: ISAKMP (0:1): received packet from 100.1.1.1 (R) MM_SA_SETUP
*Mar  2 00:30:26.417: ISAKMP (0:1): processing KE payload. message ID = 0
*Mar  2 00:30:26.417: CryptoEngine0: generate alg parameter
*Mar  2 00:30:26.589: ISAKMP (0:1): processing NONCE payload. message ID = 0
*Mar  2 00:30:26.589: ISAKMP (0:1): found peer pre-shared key matching 100.1.1.1
*Mar  2 00:30:26.593: CryptoEngine0: create ISAKMP SKEYID for conn id 1
*Mar  2 00:30:26.593: ISAKMP (0:1):
SKEYID state generated
*Mar  2 00:30:26.593: ISAKMP (0:1): processing vendor id payload
*Mar  2 00:30:26.593: ISAKMP (0:1): speaking to another IOS box!
*Mar  2 00:30:26.593: ISAKMP (0:1): sending packet to 100.1.1.1 (R) MM_KEY_EXCH
*Mar  2 00:30:26.813: ISAKMP (0:1): received packet from 100.1.1.1 (R) MM_KEY_EXCH
*Mar  2 00:30:26.817: ISAKMP (0:1): processing ID payload. message ID = 0
*Mar  2 00:30:26.817: ISAKMP (0:1): processing HASH payload. message ID = 0
*Mar  2 00:30:26.817: CryptoEngine0: generate hmac context for conn id 1

!--- Peer is authenticated.

*Mar  2 00:30:26.817: ISAKMP (0:1): SA has been authenticated with 100.1.1.1
*Mar  2 00:30:26.817: ISAKMP (1): ID payload
        next-payload : 8
        type         : 1
        protocol     : 17
        port         : 500
        length       : 8
*Mar  2 00:30:26.817: ISAKMP (1): Total payload length: 12
*Mar  2 00:30:26.817: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:30:26.817: CryptoEngine0: clear dh number for conn id 1
*Mar  2 00:30:26.821: ISAKMP (0:1): sending packet to 100.1.1.1 (R) QM_IDLE
*Mar  2 00:30:26.869: ISAKMP (0:1): received packet from 100.1.1.1 (R) QM_IDLE
*Mar  2 00:30:26.869: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:30:26.869: ISAKMP (0:1): processing HASH payload. message ID = -2078851837
*Mar  2 00:30:26.873: ISAKMP (0:1): processing SA payload. message ID = -2078851837

!--- IPSec SAs are negotiated.

*Mar  2 00:30:26.873: ISAKMP (0:1): Checking IPSec proposal 1
*Mar  2 00:30:26.873: ISAKMP: transform 1, ESP_DES
*Mar  2 00:30:26.873: ISAKMP:   attributes in transform:
*Mar  2 00:30:26.873: ISAKMP:      encaps is 1
*Mar  2 00:30:26.873: ISAKMP:      SA life type in seconds
*Mar  2 00:30:26.873: ISAKMP:      SA life duration (basic) of 3600
*Mar  2 00:30:26.873: ISAKMP:      SA life type in kilobytes
*Mar  2 00:30:26.873: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
*Mar  2 00:30:26.873: ISAKMP:      authenticator is HMAC-MD5
*Mar  2 00:30:26.873: validate proposal 0
*Mar  2 00:30:26.873: ISAKMP (0:1): atts are acceptable.
*Mar  2 00:30:26.873: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 200.1.1.1, remote= 100.1.1.1,
    local_proxy= 150.0.0.2/255.255.255.255/47/0 (type=1),
    remote_proxy= 150.0.0.1/255.255.255.255/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4
*Mar  2 00:30:26.873: validate proposal request 0
*Mar  2 00:30:26.877: ISAKMP (0:1): processing NONCE payload. message ID = -2078851837
*Mar  2 00:30:26.877: ISAKMP (0:1): processing ID payload. message ID = -2078851837
*Mar  2 00:30:26.877: ISAKMP (0:1): processing ID payload. message ID = -2078851837
*Mar  2 00:30:26.877: ISAKMP (0:1): asking for 1 spis from ipsec
*Mar  2 00:30:26.877: IPSEC(key_engine): got a queue event...
*Mar  2 00:30:26.877: IPSEC(spi_response): getting spi 2685061958 for SA
        from 200.1.1.1       to 100.1.1.1       for prot 3
*Mar  2 00:30:26.877: ISAKMP: received ke message (2/1)
*Mar  2 00:30:27.129: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:30:27.129: ISAKMP (0:1): sending packet to 100.1.1.1 (R) QM_IDLE
*Mar  2 00:30:27.185: ISAKMP (0:1): received packet from 100.1.1.1 (R) QM_IDLE
*Mar  2 00:30:27.189: CryptoEngine0: generate hmac context for conn id 1
*Mar  2 00:30:27.189: ipsec allocate flow 0
*Mar  2 00:30:27.189: ipsec allocate flow 0

!--- IPSec SAs are generated for inbound and outbound traffic.

*Mar  2 00:30:27.193: ISAKMP (0:1): Creating IPSec SAs
*Mar  2 00:30:27.193:         inbound SA from 100.1.1.1 to 200.1.1.1
        (proxy 150.0.0.1 to 150.0.0.2)
*Mar  2 00:30:27.193:         has spi 0xA00ACB46 and conn_id 2000 and flags 4
*Mar  2 00:30:27.193:         lifetime of 3600 seconds
*Mar  2 00:30:27.193:         lifetime of 4608000 kilobytes
*Mar  2 00:30:27.193:         outbound SA from 200.1.1.1       to 100.1.1.1       (proxy 150.0.0.2
     to 150.0.0.1      )
*Mar  2 00:30:27.193:         has spi -1699938183 and conn_id 2001 and flags C
*Mar  2 00:30:27.193:         lifetime of 3600 seconds
*Mar  2 00:30:27.193:         lifetime of 4608000 kilobytes
*Mar  2 00:30:27.193: ISAKMP (0:1): deleting node -2078851837 error FALSE reason "quick mode done (a
wait()"
*Mar  2 00:30:27.193: IPSEC(key_engine): got a queue event...
*Mar  2 00:30:27.193: IPSEC(initialize_sas): ,
  (key eng. msg.) INBOUND local= 200.1.1.1, remote= 100.1.1.1,
    local_proxy= 150.0.0.2/0.0.0.0/47/0 (type=1),
    remote_proxy= 150.0.0.1/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0xA00ACB46(2685061958), conn_id= 2000, keysize= 0, flags= 0x4
*Mar  2 00:30:27.197: IPSEC(initialize_sas): ,
  (key eng. msg.) OUTBOUND local= 200.1.1.1, remote= 100.1.1.1,
    local_proxy= 150.0.0.2/0.0.0.0/47/0 (type=1),
    remote_proxy= 150.0.0.1/0.0.0.0/47/0 (type=1),
    protocol= ESP, transform= esp-des esp-md5-hmac ,
    lifedur= 3600s and 4608000kb,
    spi= 0x9AAD0079(2595029113), conn_id= 2001, keysize= 0, flags= 0xC
*Mar  2 00:30:27.197: IPSEC(create_sa): sa created,
  (sa) sa_dest= 200.1.1.1, sa_prot= 50,
    sa_spi= 0xA00ACB46(2685061958),
    sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2000
*Mar  2 00:30:27.197: IPSEC(create_sa): sa created,
  (sa) sa_dest= 100.1.1.1, sa_prot= 50,
    sa_spi= 0x9AAD0079(2595029113),
    sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2001

Router2#

Informações Relacionadas

Histórico de revisões

Revisão Data de publicação Comentários
1.0
28-Dec-2005
Versão inicial

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