Guia de migração do EzVPN-NEM para FlexVPN

Introduction

Este documento fornece assistência no processo de migração da configuração do EzVPN (Internet Key Exchange v1 (IKEv1) para a instalação do FlexVPN (IKEv2) com o menor número possível de problemas. Como o Acesso Remoto IKEv2 difere do Acesso Remoto IKEv1 de certas maneiras que tornam a migração um pouco difícil, este documento ajuda a escolher diferentes abordagens de design na migração do modelo EzVPN para o modelo de Acesso Remoto FlexVPN.

Este documento trata do cliente IOS FlexVPN ou do cliente de hardware, este documento não discute o cliente de software. Para obter mais informações sobre o cliente de software, consulte:

• FlexVPN: IKEv2 com cliente Windows incorporado e autenticação de certificado

• Exemplo de configuração de cliente FlexVPN e Anyconnect IKEv2

• Implantação de FlexVPN: Acesso remoto do AnyConnect IKEv2 com EAP-MD5

Prerequisites

Requirements

A Cisco recomenda que você tenha conhecimento destes tópicos:

• IKEv2

• Cisco FlexVPN

• Cisco AnyConnect Secure Mobility Client

• Cisco VPN Client

Componentes Utilizados

Este documento não se restringe a versões de software e hardware específicas.

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

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

EzVPN versus FlexVPN

Modelo EzVPN - O que sobressai

Como o nome sugere, o objetivo do EzVPN é facilitar a configuração de VPN nos clientes remotos. Para conseguir isso, o cliente é configurado com detalhes mínimos necessários para entrar em contato com o servidor EzVPN correto, também conhecido como perfil do cliente.

Negociação de túnel

Modelo VPN de acesso remoto FlexVPN

Servidor FlexVPN

Uma diferença importante entre o FlexVPN normal e uma configuração de acesso remoto FlexVPN é que o servidor precisa se autenticar para os clientes FlexVPN através do uso apenas do método de chaves e certificados pré-compartilhados (RSA-SIG). O FlexVPN permite que você decida quais métodos de autenticação o iniciador e o respondedor usam, independentemente um do outro. Por outras palavras, podem ser iguais ou podem ser diferentes. No entanto, quando se trata de acesso remoto FlexVPN, o servidor não tem uma escolha.

Métodos de autenticação de cliente FlexVPN do IOS

O cliente suporta os seguintes métodos de autenticação:

• RSA-SIG — Autenticação de certificado digital.

• Pré-compartilhamento — Autenticação de chave pré-compartilhada (PSK).

• Extensible Authentication Protocol (EAP) - EAP Authentication. EAP-Support para cliente IOS FlexVPN foi adicionado em 15.2(3)T.

  Os métodos EAP suportados pelo cliente IOS FlexVPN incluem:

  • Extensible Authentication Protocol-Message Digest 5 (EAP-MD5),

  • Extensible Authentication Protocol-Microsoft Challenge Handshake Authentication Protocol Version 2 (EAP-MSCHAPv2) e

  • Extensible Authentication Protocol-Generic Token Card (EAP-GTC).

Este documento descreve somente o uso da autenticação RSA-SIG, por estes motivos:

• Escalável — Cada cliente recebe um certificado e, no servidor, uma parte genérica da identidade do cliente é autenticada em relação a ele.

• Seguro — mais seguro que uma PSK curinga (no caso de autorização local). Embora, no caso da autorização AAA (authentication, authorization, and accounting), seja mais fácil escrever PSKs separadas com base na identidade IKE gerenciada.

A configuração do cliente FlexVPN mostrada neste documento pode parecer pouco exaustiva em comparação com o cliente EasyVPN. Isso ocorre porque a configuração inclui algumas partes da configuração que não precisam ser configuradas pelo usuário devido a padrões inteligentes. Padrões inteligentes é o termo usado para se referir à configuração preconfigurada ou padrão para vários itens, como proposta, política, conjunto de transformação de IPSec etc. E ao contrário dos valores padrão IKEv1, os valores padrão inteligentes IKEv2 são fortes. Por exemplo, ele usa o Advanced Encryption Standard (AES-256), o Secure Hash Algorithm (SHA-512) e o Group-5 nas propostas e assim por diante.

Negociação de túnel

Para obter mais informações sobre a troca de pacotes para uma troca de IKEv2, consulte IKEv2 Packet Exchange and Protocol Level Debugging.

Configuração inicial

Topologia

Configuração inicial

Hub EzVPN - baseado em dVTI

!! AAA Config for EzVPN clients. We are using Local AAA Server.
aaa new-model
aaa authentication login default local
aaa authorization network default local 

!! ISAKMP Policy
crypto isakmp policy 1
 encr 3des
 authentication pre-share
 group 2
 
!! ISAKMP On-Demand Keep-Alive     
crypto isakmp keepalive 10 2

!! EzVPN Split ACL
access-list 101 permit ip 10.10.0.0 0.0.0.255 any

!! EzVPN Client Group Configuration. This is what holds all the config attributes
crypto isakmp client configuration group cisco
 key cisco
 dns 6.0.0.2
 wins 7.0.0.1
 domain cisco.com
 acl 101
 save-password

!! ISAKMP Profile. This ties Client IKE identity to AAA. 
!! And since this is dVTI setup, ISAKMP Profile tells the IOS
!!   from which Virtual-Template (VT1) to clone the Virtual Access interfaces 
crypto isakmp profile vi
   match identity group cisco
   client authentication list default
   isakmp authorization list default
   virtual-template 1

!! IPSec Transform Set. 
crypto ipsec transform-set set esp-3des esp-sha-hmac 

!! IPSec Profile. This ties Transform set and ISAKMP Profile together.
crypto ipsec profile vi
 set transform-set set 
 set isakmp-profile vi

!! The loopback interface. And virtual-template borrows the address from here.
interface Loopback0
 ip address 10.10.10.1 255.255.255.252

!! dVTI interface.
interface Virtual-Template1 type tunnel
 ip unnumbered Loopback0
 tunnel mode ipsec ipv4
 tunnel protection ipsec profile vi

Cliente EzVPN - Clássico (sem VTI)

!! ISAKMP On-Demand Keep-Alive     
crypto isakmp keepalive 10 2

!! EzVPN Client - Group Name and The key (as configured on the Server), 
!!   Peer address and XAUTH config go here.
crypto ipsec client ezvpn ez
 connect auto
 group cisco key cisco
 local-address Ethernet0/0
 mode network-extension
 peer 10.0.0.1
 username cisco password cisco
 xauth userid mode local

!! EzVPn outside interface - i.e. WAN interface
interface Ethernet0/0
 ip address 10.1.1.2 255.255.255.0
 crypto ipsec client ezvpn ez

!! EzVPN inside interface
!! Traffic sourced from this LAN is sent over established Tunnel
interface Ethernet0/1
 ip address 10.10.1.1 255.255.255.0
 crypto ipsec client ezvpn ez inside

Cliente EzVPN - Avançado (baseado em VTI)

!! VTI - 
interface Virtual-Template1 type tunnel
 no ip address
 tunnel mode ipsec ipv4

!! ISAKMP On-Demand Keep-Alive     
crypto isakmp keepalive 10 2

!! EzVPN Client - Group Name and The key (as configured on the Server),
!!   Peer address and XAUTH config go here.
!! Also this config says which Virtual Template to use.
crypto ipsec client ezvpn ez
 connect auto
 group cisco key cisco
 local-address Ethernet0/0
 mode network-extension
 peer 10.0.0.1
 virtual-interface 1
 username cisco password cisco
 xauth userid mode local

!! EzVPn outside interface - WAN interface
interface Ethernet0/0
 ip address 10.1.1.3 255.255.255.0
 crypto ipsec client ezvpn ez

!! EzVPN inside interface -
!! Traffic sourced from this LAN is sent over established Tunnel
interface Ethernet0/1
 ip address 10.10.2.1 255.255.255.0
 crypto ipsec client ezvpn ez inside

Abordagem de migração de EzVPN para FlexVPN

O servidor que atua como um servidor EzVPN também pode atuar como um servidor FlexVPN desde que ele suporte a configuração de Acesso Remoto IKEv2. Para um suporte completo à configuração de IKEv2, recomenda-se qualquer coisa acima do IOS v15.2(3)T. Nesses exemplos, 15.2(4)M1 foi usado.

Há duas abordagens possíveis:

1. Configure o servidor EzVPN como o servidor FlexVPN e, em seguida, migre os clientes EzVPN para a configuração Flex.

2. Configure um roteador diferente como um servidor FlexVPN. Os clientes EzVPN e os clientes FlexVPN migrados continuam a se comunicar através da criação de uma conexão entre o servidor FlexVPN e o servidor EzVPN.

Este documento descreve a segunda abordagem e usa um novo spoke (por exemplo, Spoke3), como o cliente FlexVPN. Esse spoke pode ser usado como referência para migrar outros clientes no futuro.

Etapas de migração

Observe que ao migrar de um spoke EzVPN para um spoke FlexVPN, você pode optar por carregar a configuração FlexVPN no spoke EzVPN. No entanto, durante todo o corte, você pode precisar de um acesso de gerenciamento fora de banda (não VPN) para a caixa.

Topologia migrada

Configuração

Hub FlexVPN

!! AAA Authorization done Locally
aaa new-model
aaa authorization network Flex local 

!! PKI TrustPoint to Sign and Validate Certificates.
!! Contains Identity Certificate and CA Certificate
crypto pki trustpoint FlexServer
 enrollment terminal
 revocation-check none
 rsakeypair FlexServer
 subject-name CN=flexserver.cisco.com,OU=FlexVPN

!! Access-list used in Config-Reply in order to push routes
access-list 1 permit 10.10.0.0 0.0.0.255

!! IKEv2 Authorization done locally. Used in Config-Set.
crypto ikev2 authorization policy FlexClient-Author 
 def-domain cisco.com
 route set interface
 route set access-list 1

!! IKEv2 Proposal. Optional Config. Smart-Default takes care of this.
crypto ikev2 proposal FlexClient-Proposal 
 encryption aes-cbc-128 aes-cbc-192 3des
 integrity sha256 sha512 sha1
 group 5 2

!! If IKEv2 Proposal was left out default, then IKEv2 Policy can be left out too.
!! Ties Proposal to Peer address/fvrf
crypto ikev2 policy FlexClient-Policy 
 match fvrf any
 proposal FlexClient-Proposal

!! IKEv2 Profile. This is the main Part
!! Clients are configured to send their FQDN. And we match the domain 'cisco.com'
!! We are sending 'flexserver.cisco.com' as the fqdn identity.
!! Local and Remote authentication is RSA-SIG
!! Authorization (config-reply) is done locally with the user-name
!!   'FlexClient-Author'
!! This whole profile is tied to Virtual-Template 1 
crypto ikev2 profile FlexClient-Profile
 match identity remote fqdn domain cisco.com
 identity local fqdn flexserver.cisco.com
 authentication remote rsa-sig
 authentication local rsa-sig
 pki trustpoint FlexServer
 aaa authorization group cert list Flex FlexClient-Author
 virtual-template 1

!! IPSec Transform set. Optional Config, since Smart Default takes care of this.
crypto ipsec transform-set ESP-AES-SHA1 esp-aes esp-sha-hmac 

!! IPSec Profile ties default/Configured transform set with the IKEv2 Profile
crypto ipsec profile FlexClient-IPSec
 set transform-set ESP-AES-SHA1 
 set ikev2-profile FlexClient-Profile

!! Loopback interface lends ip address to Virtual-template and 
!!   eventually to Virtual-Access interfaces spawned.
interface Loopback0
 ip address 10.10.10.1 255.255.255.252

!! The IKEv2 enabled Virtual-Template 
interface Virtual-Template1 type tunnel
 ip unnumbered Loopback0
 tunnel protection ipsec profile FlexClient-IPSec

!! WAN interface
interface Ethernet0/0
 ip address 10.0.0.2 255.255.255.0

!! LAN interfaces
interface Ethernet0/1
 ip address 10.10.0.1 255.255.255.0

Nota sobre certificados de servidor

O uso de chave (KU) define a finalidade ou o uso pretendido da chave pública. O Enhanced/Extended Key Usage (EKU) aperfeiçoa o uso principal. O FlexVPN requer que o certificado do servidor tenha uma EKU de autenticação do servidor (OID = 1.3.6.1.5.5.7.3.1 ) com os atributos da KU de Assinatura Digital e Elemento de Chave para que o certificado seja aceito pelo cliente.

FlexServer#show crypto pki certificates verbose 
Certificate
  Status: Available
  Version: 3
  Certificate Serial Number (hex): 09
  Certificate Usage: General Purpose
  Issuer: 
    l=lal-bagh
    c=IN
    o=Cisco
    ou=TAC
    cn=Praveen
  Subject:
    Name: flexserver.cisco.com
    ou=FlexVPN
    cn=flexserver.cisco.com
  CRL Distribution Points: 
    http://10.48.67.33:80/Praveen/Praveen.crl
<snip>
  Signature Algorithm: MD5 with RSA Encryption
  Fingerprint MD5: F3646C9B 1CC26A81 C3CB2034 061302AA 
  Fingerprint SHA1: 7E9E99D4 B66C70E3 CBA8C4DB DD94629C 023EEBE7 
  X509v3 extensions:
    X509v3 Key Usage: E0000000
      Digital Signature
      Non Repudiation
      Key Encipherment
<snip>
    Authority Info Access:
    Extended Key Usage:
        Client Auth
        Server Auth
  Associated Trustpoints: FlexServer 
  Storage: nvram:lal-bagh#9.cer
  Key Label: FlexServer
  Key storage device: private config



CA Certificate
<snip>

Configuração do cliente FlexVPN

!! AAA Authorization done Locally
aaa new-model
aaa authorization network Flex local

!! PKI TrustPoint to Sign and Validate Certificates.
!! Contains Identity Certificate and CA Certificate
crypto pki trustpoint Spoke3-Flex
 enrollment terminal
 revocation-check none
 subject-name CN=spoke3.cisco.com,OU=FlexVPN
 rsakeypair Spoke3-Flex

!! Access-list used in Config-Set in order to push routes
access-list 1 permit 10.10.3.0 0.0.0.255

!! IKEv2 Authorization done locally. Used in Config-Set.
crypto ikev2 authorization policy FlexClient-Author 
 route set interface
 route set access-list 1


!! IKEv2 Proposal. Optional Config. Smart-Default takes care of this.
crypto ikev2 proposal FlexClient-Proposal 
 encryption aes-cbc-128 aes-cbc-192 3des
 integrity sha256 sha512 sha1
 group 5 2


!! If IKEv2 Proposal was left out default, then IKEv2 Policy can be left out too.
!! Ties Proposal to Peer address/fvrf
crypto ikev2 policy FlexClient-Policy 
 match fvrf any
 proposal FlexClient-Proposal

!! IKEv2 Profile. This is the main Part
!! Server is configured to send its FQDN type IKE-ID, 
!!    and we match the domain 'cisco.com'
!! (If the IKE-ID type is DN (extracted from the certificate),
!!    we will need a certificate map)
!! We are sending 'spoke3.cisco.com' as the IKE-identity of type fqdn.
!! Local and Remote authentication is RSA-SIG
!! Authorization (config-set) is done locally using the user-name filter
!!    'FlexClient-Author'
crypto ikev2 profile FlexClient-Profile
 match identity remote fqdn flexserver.cisco.com
 identity local fqdn spoke3.cisco.com
 authentication remote rsa-sig
 authentication local rsa-sig
 pki trustpoint Spoke3-Flex
 aaa authorization group cert list Flex FlexClient-Author

!! IPSec Transform set. Optional Config, since Smart Default takes care of this.
crypto ipsec transform-set ESP-AES-SHA1 esp-aes esp-sha-hmac 

!! IPSec Profile ties the transform set with the IKEv2 Profile
crypto ipsec profile FlexClient-IPSec
 set transform-set ESP-AES-SHA1 
 set ikev2-profile FlexClient-Profile

!! FlexVPN Client Tunnel interface. 
!! If IP-Address of the tunnel is negotiated,
!!   FlexVPN server is capable of assigning an IP through Config-Set 
interface Tunnel0
 ip unnumbered Ethernet0/1
 tunnel source Ethernet0/0
 tunnel destination dynamic
 tunnel protection ipsec profile FlexClient-IPSec

!! Final FlexVPN client Part. 
!! Multiple backup Peer and/or Multiple Tunnel source interfaces can be configured
crypto ikev2 client flexvpn FlexClient
  peer 1 10.0.0.2
  client connect Tunnel0

!! WAN interface
interface Ethernet0/0
 ip address 10.1.1.4 255.255.255.248

!! LAN Interface
interface Ethernet0/1
 ip address 10.10.3.1 255.255.255.0

Observação sobre certificados de cliente

O FlexVPN requer que o certificado do cliente tenha uma EKU de Autenticação de Cliente (OID = 1.3.6.1.5.5.7.3.2 ) com os atributos de KU de Assinatura Digital e Elemento de Chave para que o certificado seja aceito pelo servidor.

Spoke3#show crypto pki certificates verbose 
Certificate
  Status: Available
  Version: 3
  Certificate Serial Number (hex): 08
  Certificate Usage: General Purpose
  Issuer: 
    l=lal-bagh
    c=IN
    o=Cisco
    ou=TAC
    cn=Praveen
  Subject:
    Name: spoke3.cisco.com
    ou=FlexVPN
    cn=spoke3.cisco.com
 <snip>
  Subject Key Info:
    Public Key Algorithm: rsaEncryption
    RSA Public Key: (1024 bit)
  Signature Algorithm: MD5 with RSA Encryption
  Fingerprint MD5: 2381D319 906177E1 F45019BC 61059BD5 
  Fingerprint SHA1: D81FD705 653547F2 D0916710 E6B096A1 23F6C467 
  X509v3 extensions:
    X509v3 Key Usage: E0000000
      Digital Signature
      Non Repudiation
      Key Encipherment
 <snip>
    Extended Key Usage:
        Client Auth
        Server Auth
  Associated Trustpoints: Spoke3-Flex 
  Storage: nvram:lal-bagh#8.cer
  Key Label: Spoke3-Flex
  Key storage device: private config



CA Certificate
<snip>

Verificação de operação FlexVPN

Servidor FlexVPN

FlexServer#show crypto ikev2 session   
 IPv4 Crypto IKEv2 Session 
Session-id:5, Status:UP-ACTIVE, IKE count:1, CHILD count:1

Tunnel-id Local                 Remote                fvrf/ivrf            Status 
1         10.0.0.2/500          10.1.1.4/500          none/none            READY  
    Encr: AES-CBC, keysize: 192, Hash: SHA512, DH Grp:5, Auth sign: RSA, Auth verify: 
   RSA
    Life/Active Time: 86400/7199 sec
Child sa: local selector  10.0.0.2/0 - 10.0.0.2/65535
          remote selector 10.1.1.4/0 - 10.1.1.4/65535
          ESP spi in/out: 0xA9571C00/0x822DDAAD 

FlexServer#show crypto ikev2 session detailed 

 IPv4 Crypto IKEv2 Session 

Session-id:5, Status:UP-ACTIVE, IKE count:1, CHILD count:1

Tunnel-id Local                 Remote                fvrf/ivrf            Status 
1         10.0.0.2/500          10.1.1.4/500          none/none            READY  

    Encr: AES-CBC, keysize: 192, Hash: SHA512, DH Grp:5, Auth sign: RSA, Auth verify: 
   RSA
    Life/Active Time: 86400/7244 sec
    CE id: 1016, Session-id: 5
    Status Description: Negotiation done
    Local spi: 648921093349609A       Remote spi: 1C2FFF727C8EA465
    Local id: flexserver.cisco.com
    Remote id: spoke3.cisco.com
    Local req msg id:  2              Remote req msg id:  5         
    Local next msg id: 2              Remote next msg id: 5         
    Local req queued:  2              Remote req queued:  5         
    Local window:      5              Remote window:      5         
    DPD configured for 0 seconds, retry 0
    NAT-T is not detected  
    Cisco Trust Security SGT is disabled
    Initiator of SA : No
    Remote subnets:
    10.10.3.0 255.255.255.0


  Child sa: local selector  10.0.0.2/0 - 10.0.0.2/65535
            remote selector 10.1.1.4/0 - 10.1.1.4/65535
        ESP spi in/out: 0xA9571C00/0x822DDAAD  
        AH spi in/out: 0x0/0x0  
        CPI in/out: 0x0/0x0  
        Encr: AES-CBC, keysize: 128, esp_hmac: SHA96
        ah_hmac: None, comp: IPCOMP_NONE, mode transport

FlexServer#show ip route static 
      10.0.0.0/8 is variably subnetted, 9 subnets, 4 masks
S        10.10.3.0/30 is directly connected, Virtual-Access1

FlexServer#ping 10.10.3.1 repeat 100

Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 10.10.3.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/5/13 ms


FlexServer#show crypto ipsec sa | I ident|caps|spi
 local  ident (addr/mask/prot/port): (10.0.0.2/255.255.255.255/47/0)
 remote ident (addr/mask/prot/port): (10.1.1.4/255.255.255.255/47/0)
  #pkts encaps: 205, #pkts encrypt: 205, #pkts digest: 205
  #pkts decaps: 200, #pkts decrypt: 200, #pkts verify: 200
   current outbound spi: 0x822DDAAD(2184043181)
    spi: 0xA9571C00(2841058304)
    spi: 0x822DDAAD(2184043181)

FlexVPN remoto

Spoke3#show crypto ikev2 session          
 IPv4 Crypto IKEv2 Session 
Session-id:4, Status:UP-ACTIVE, IKE count:1, CHILD count:1

Tunnel-id Local                 Remote                fvrf/ivrf            Status 
1         10.1.1.4/500          10.0.0.2/500          none/none            READY  
    Encr: AES-CBC, keysize: 192, Hash: SHA512, DH Grp:5, Auth sign: RSA, Auth verify: 
   RSA
    Life/Active Time: 86400/7621 sec
Child sa: local selector  10.1.1.4/0 - 10.1.1.4/65535
          remote selector 10.0.0.2/0 - 10.0.0.2/65535
          ESP spi in/out: 0x822DDAAD/0xA9571C00  

Spoke3#show crypto ikev2 session detailed 

 IPv4 Crypto IKEv2 Session 
Session-id:4, Status:UP-ACTIVE, IKE count:1, CHILD count:1

Tunnel-id Local                 Remote                fvrf/ivrf            Status 
1         10.1.1.4/500          10.0.0.2/500          none/none            READY  

    Encr: AES-CBC, keysize: 192, Hash: SHA512, DH Grp:5, Auth sign: RSA, Auth verify: 
   RSA
    Life/Active Time: 86400/7612 sec
    CE id: 1016, Session-id: 4
    Status Description: Negotiation done
    Local spi: 1C2FFF727C8EA465       Remote spi: 648921093349609A
    Local id: spoke3.cisco.com
    Remote id: flexserver.cisco.com
    Local req msg id:  5              Remote req msg id:  2         
    Local next msg id: 5              Remote next msg id: 2         
    Local req queued:  5              Remote req queued:  2         
    Local window:      5              Remote window:      5         
    DPD configured for 0 seconds, retry 0
    NAT-T is not detected  
    Cisco Trust Security SGT is disabled
    Initiator of SA : Yes
    Default Domain: cisco.com
    Remote subnets:
    10.10.10.1 255.255.255.255
    10.10.0.0 255.255.255.0


Child sa: local selector  10.1.1.4/0 - 10.1.1.4/65535
          remote selector 10.0.0.2/0 - 10.0.0.2/65535
         ESP spi in/out: 0x822DDAAD/0xA9571C00  
         AH spi in/out: 0x0/0x0  
         CPI in/out: 0x0/0x0  
         Encr: AES-CBC, keysize: 128, esp_hmac: SHA96
         ah_hmac: None, comp: IPCOMP_NONE, mode transport

Spoke3#ping 10.10.0.1 repeat 100                 

Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 10.10.0.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/5/12 ms

Spoke3#show crypto ipsec sa | I ident|caps|spi
  local  ident (addr/mask/prot/port): (10.1.1.4/255.255.255.255/47/0)
  remote ident (addr/mask/prot/port): (10.0.0.2/255.255.255.255/47/0)
   #pkts encaps: 300, #pkts encrypt: 300, #pkts digest: 300
   #pkts decaps: 309, #pkts decrypt: 309, #pkts verify: 309
    current outbound spi: 0xA9571C00(2841058304)
     spi: 0x822DDAAD(2184043181)
     spi: 0xA9571C00(2841058304)

Informações Relacionadas

• FlexVPN: IKEv2 com Cliente Windows incorporado e Certificado de Autenticação TechNote
• Exemplo de configuração de cliente FlexVPN e Anyconnect IKEv2 TechNote
• Implantação de FlexVPN: Acesso remoto do AnyConnect IKEv2 com o EAP-MD5 TechNote
• Nota técnica de depuração de nível de protocolo e troca de pacotes IKEv2
• Cisco FlexVPN
• Negociação IPsec/Protocolos IKE
• Cisco AnyConnect Secure Mobility Client
• Cisco VPN Client
• Suporte Técnico e Documentação - Cisco Systems