PIX/ASA 7.x Easy VPN con ASA 5500 come server e PIX 506E come esempio di configurazione client (NEM)

Introduzione

In questo documento viene fornito un esempio di configurazione per IPsec tra un Cisco Adaptive Security Appliance (ASA) 5520 e un Cisco PIX 506E con EasyVPN. ASA 5520 funge da server EasyVPN e PIX 506E da client remoto EasyVPN. Sebbene questa configurazione utilizzi un dispositivo ASA 5520 con software ASA versione 7.0(4), è possibile utilizzarla anche per i dispositivi PIX Firewall con sistema operativo PIX versione 7.0 e successive.

Per ulteriori informazioni su uno scenario simile in cui il router Cisco 871 opera come router Easy VPN Remote, fare riferimento a PIX/ASA 7.x Easy VPN con ASA 5500 come server e Cisco 871 come esempio di configurazione remota di Easy VPN.

Per ulteriori informazioni su uno scenario simile in cui Cisco VPN 3000 Concentrator opera come server Easy VPN, fare riferimento a VPN Hardware Client su un'appliance di sicurezza serie PIX 501/506 con configurazione VPN 3000 Concentrator.

Per ulteriori informazioni su uno scenario simile in cui il router Cisco IOS opera come server Easy VPN, fare riferimento agli esempi PIX 501/506 Easy VPN Remote to an IOS® Router in Network Extension Mode with Extended Authentication Configuration.

Per ulteriori informazioni, fare riferimento al documento PIX-to-PIX 6.x: Esempio di configurazione Easy VPN (NEM) per ulteriori informazioni su uno scenario simile in cui PIX 506 6.x funge da server Easy VPN.

Prerequisiti

Requisiti

Prima di provare questa configurazione, accertarsi di soddisfare i seguenti requisiti:

• Accertarsi di avere una conoscenza di base di IPsec e dei sistemi operativi ASA/PIX 6.x e 7.x.

Componenti usati

Le informazioni fornite in questo documento si basano sulle seguenti versioni software e hardware:

• Il client hardware remoto EasyVPN è un PIX 506E con versione 6.3(5).

• Il server EasyVPN è un'appliance ASA 5520 con versione 7.0(4).

Nota: ASA serie 5500 versione 7.x esegue lo stesso software della versione 7.x di PIX. Le configurazioni riportate in questo documento sono applicabili a entrambe le linee di prodotti.

Le informazioni discusse in questo documento fanno riferimento a dispositivi usati in uno specifico ambiente di emulazione. Su tutti i dispositivi menzionati nel documento la configurazione è stata ripristinata ai valori predefiniti. Se la rete è operativa, valutare attentamente eventuali conseguenze derivanti dall'uso dei comandi.

Convenzioni

Fare riferimento a Cisco Technical Tips Conventions per ulteriori informazioni sulle convenzioni dei documenti.

Configurazione

In questa sezione vengono presentate le informazioni necessarie per configurare le funzionalità descritte più avanti nel documento.

Nota: per ulteriori informazioni sui comandi menzionati in questa sezione, usare lo strumento di ricerca dei comandi (solo utenti registrati).

Esempio di rete

Nel documento viene usata questa impostazione di rete:

Configurazioni

Nel documento vengono usate queste configurazioni:

• Easy VPN Server (ASA 5520)

• Easy VPN Remote Hardware Client

ASA5520-704#write terminal
: Saved
:
ASA Version 7.0(4)
!
hostname ASA5520-704
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!


!--- Configure the outside and inside interfaces.

interface GigabitEthernet0/0
 nameif outside
 security-level 0
 ip address 10.20.20.1 255.255.255.0
!
interface GigabitEthernet0/1
 nameif inside
 security-level 100
 ip address 172.22.1.1 255.255.255.0
!
interface GigabitEthernet0/2
 shutdown
 no nameif
 no security-level
 no ip address
!
interface GigabitEthernet0/3
 shutdown
 no nameif
 no security-level
 no ip address
!
interface Management0/0
 shutdown
 no nameif
 no security-level
 no ip address
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive


!--- This access list is used for a nat zero command that prevents !--- traffic which matches the access list from undergoing !--- network address translation (NAT). 

access-list no-nat extended permit ip 172.22.1.0 255.255.255.0 172.16.1.0 255.255.255.0

!--- This access list is used to define the traffic !--- that should pass through the tunnel. !--- It is bound to the group policy which defines !--- a dynamic crypto map.

access-list ezvpn1 extended permit ip 172.22.1.0 255.255.255.0 172.16.1.0 255.255.255.0
pager lines 24
mtu outside 1500
mtu inside 1500
no failover
icmp permit any echo-reply outside
icmp permit any inside
no asdm history enable
arp timeout 14400


!--- Specify the NAT configuration. !--- NAT 0 prevents NAT for the ACL defined in this configuration. !--- The nat 1 command specifies NAT for all other traffic.

global (outside) 1 interface
nat (inside) 0 access-list no-nat
nat (inside) 1 0.0.0.0 0.0.0.0
route outside 0.0.0.0 0.0.0.0 10.20.20.2 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00
timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute


!--- This defines the group policy you use with EasyVPN. !--- Specify the networks !--- that should pass through the tunnel and that you want to !--- use network extension mode.

group-policy myGROUP internal
group-policy myGROUP attributes
 split-tunnel-policy tunnelspecified
 split-tunnel-network-list value ezvpn1
 nem enable
 webvpn


!--- Here the username and password associated with !--- this VPN connection are defined. You !--- can also use AAA for this function.

username cisco password 3USUcOPFUiMCO4Jk encrypted
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart



!--- PHASE 2 CONFIGURATION ---! !--- The encryption types for Phase 2 are defined here. !--- A single DES encryption with !--- the md5 hash algorithm is used.

crypto ipsec transform-set mySET esp-des esp-md5-hmac


!--- Defines a dynamic crypto map with !--- the specified encryption settings.

crypto dynamic-map myDYN-MAP 5 set transform-set mySET


!--- Binds the dynamic map to the IPsec/ISAKMP process.

crypto map myMAP 60 ipsec-isakmp dynamic myDYN-MAP


!--- Specifies the interface to be used with !--- the settings defined in this configuration.

crypto map myMAP interface outside


!--- PHASE 1 CONFIGURATION ---! !--- This configuration uses isakmp policy 1. !--- Policy 65535 is included in the default !--- configuration. The configuration commands here define the Phase !--- 1 policies that are used.

isakmp enable outside
isakmp policy 1 authentication pre-share
isakmp policy 1 encryption des
isakmp policy 1 hash md5
isakmp policy 1 group 2
isakmp policy 1 lifetime 86400


isakmp policy 65535 authentication pre-share
isakmp policy 65535 encryption 3des
isakmp policy 65535 hash sha
isakmp policy 65535 group 2
isakmp policy 65535 lifetime 86400


!--- The tunnel-group commands bind the configurations !--- defined in this configuration to the tunnel that is !--- used for EasyVPN. This tunnel name is the one specified on the remote side.

tunnel-group mytunnel type ipsec-ra
tunnel-group mytunnel general-attributes
 default-group-policy myGROUP
tunnel-group mytunnel ipsec-attributes

!--- The pre-shared-key used here is "cisco".

 pre-shared-key *

telnet timeout 5
ssh timeout 5
console timeout 0
!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map global_policy
 class inspection_default
  inspect dns maximum-length 512
  inspect ftp
  inspect h323 h225
  inspect h323 ras
  inspect netbios
  inspect rsh
  inspect rtsp
  inspect skinny
  inspect esmtp
  inspect sqlnet
  inspect sunrpc
  inspect tftp
  inspect sip
  inspect xdmcp
!
service-policy global_policy global
Cryptochecksum:42123a94a33d8d10ae6a1505fb4ba653
: end
[OK]
ASA5520-704#

pix506-635#write terminal
Building configuration...
: Saved
:
PIX Version 6.3(5)

!--- Brings the interfaces out of a shutdown state.

interface ethernet0 auto
interface ethernet1 auto


!--- Assign the interface names.

nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pix506-635
domain-name cisco.com
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
pager lines 24
icmp permit any outside
mtu outside 1500
mtu inside 1500


!--- Assign the interface IP addresses.

ip address outside 10.10.10.1 255.255.255.0
ip address inside 172.16.1.1 255.255.255.0

ip audit info action alarm
ip audit attack action alarm
pdm history enable
arp timeout 14400


!--- Set the standard NAT configuration. !--- EasyVPN provides the NAT exceptions needed.

global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0 0 0


!--- Specify the default route.

route outside 0.0.0.0 0.0.0.0 10.10.10.2 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout sip-disconnect 0:02:00 sip-invite 0:03:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
aaa-server LOCAL protocol local
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
telnet timeout 5
ssh timeout 5
console timeout 0


!--- EasyVPN Client Configuration ---! !--- Specify the IP address of the VPN server.

vpnclient server 10.20.20.1

!--- This example uses network extension mode.

vpnclient mode network-extension-mode

!--- Specify the group name and the pre-shared key.

vpnclient vpngroup mytunnel password ********

!--- Specify the authentication username and password.

vpnclient username cisco password ********

!---- After you issue this command, the tunnel is established.

vpnclient enable
terminal width 80
Cryptochecksum:1564fd62a9e4312020f51846bd1b3534
: end
[OK]
pix506-635#

Verifica

Per verificare che la configurazione funzioni correttamente, consultare questa sezione.

Lo strumento Output Interpreter (solo utenti registrati) (OIT) supporta alcuni comandi show. Usare l'OIT per visualizzare un'analisi dell'output del comando show.

• PIX EasyVPN Server show Commands e output di esempio

• Comandi show e output di esempio del client hardware remoto PIX EasyVPN

PIX EasyVPN Server show Commands e output di esempio

• show crypto isakmp sa: visualizza tutte le associazioni di protezione (SA) IKE (Internet Key Exchange) correnti in un peer.

  ASA5520-704#show crypto isakmp sa
  
  Active SA: 1
  Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)
  Total IKE SA: 1
  
  1 IKE Peer: 10.10.10.1
  Type : user Role : responder
  Rekey : no State : AM_ACTIVE
  ASA5520-704#

• show crypto ipsec sa: visualizza le SA IPsec generate tra peer.

  ASA5520-704#show crypto ipsec sa
  interface: outside
      Crypto map tag: myDYN-MAP, seq num: 5, local addr: 10.20.20.1
  
  local ident (addr/mask/prot/port): (172.22.1.0/255.255.255.0/0/0)
  remote ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0)
  current_peer: 10.10.10.1, username: cisco
  dynamic allocated peer ip: 0.0.0.0
  
  #pkts encaps: 655, #pkts encrypt: 655, #pkts digest: 655
  #pkts decaps: 706, #pkts decrypt: 706, #pkts verify: 706
  #pkts compressed: 0, #pkts decompressed: 0
  #pkts not compressed: 655, #pkts comp failed: 0, #pkts decomp failed: 0
  #send errors: 0, #recv errors: 0
  
  local crypto endpt.: 10.20.20.1, remote crypto endpt.: 10.10.10.1
  
  path mtu 1500, ipsec overhead 60, media mtu 1500
  current outbound spi: 3EA12BBE
  
  inbound esp sas:
  spi: 0x9B94D824 (2610223140)
  transform: esp-des esp-md5-hmac
  in use settings ={RA, Tunnel, }
  slot: 0, conn_id: 4, crypto-map: myDYN-MAP
  sa timing: remaining key lifetime (sec): 25015
  IV size: 8 bytes
  replay detection support: Y
  outbound esp sas:
  spi: 0x3EA12BBE (1050749886)
  transform: esp-des esp-md5-hmac
  in use settings ={RA, Tunnel, }
  slot: 0, conn_id: 4, crypto-map: myDYN-MAP
  sa timing: remaining key lifetime (sec): 25011
  IV size: 8 bytes
  replay detection support: Y
  
  ASA5520-704#

Comandi show e output di esempio del client hardware remoto PIX EasyVPN

• vpnclient enable: abilita una connessione remota EasyVPN. In modalità di estensione della rete (NEM), il tunnel è attivo anche quando non vi è traffico interessante da scambiare con il server EasyVPN headend.

  pix506-635(config)#vpnclient enable
  

• show crypto isakmp policy: visualizza i parametri per ciascun criterio IKE.

  pix506-635#show crypto isakmp policy
  
  Default protection suite 
      encryption algorithm:   DES - Data Encryption Standard (56 bit keys). 
      hash algorithm:         Secure Hash Standard 
      authentication method:  Rivest-Shamir-Adleman Signature 
      Diffie-Hellman group:   #1 (768 bit) 
      lifetime:               86400 seconds, no volume limit

  Questo output mostra il comando show crypto isakmp policy dopo l'abilitazione del client hardware.

  pix506-635(config)#show crypto isakmp policy 
  
  Protection suite of priority 65001 
       encryption algorithm:   AES - Advanced Encryption Standard (256 bit keys). 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65002 
       encryption algorithm:   AES - Advanced Encryption Standard (256 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65003 
       encryption algorithm:   AES - Advanced Encryption Standard (192 bit keys). 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65004 
       encryption algorithm:   AES - Advanced Encryption Standard (192 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65005 
       encryption algorithm:   AES - Advanced Encryption Standard (128 bit keys). 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65006 
       encryption algorithm:   AES - Advanced Encryption Standard (128 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65007 
       encryption algorithm:   Three key triple DES 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65008 
       encryption algorithm:   Three key triple DES 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65009 
       encryption algorithm:   DES - Data Encryption Standard (56 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key with XAUTH 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65010 
       encryption algorithm:   AES - Advanced Encryption Standard (256 bit keys). 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65011 
       encryption algorithm:   AES - Advanced Encryption Standard (256 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65012 
       encryption algorithm:   AES - Advanced Encryption Standard (192 bit keys). 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65013 
       encryption algorithm:   AES - Advanced Encryption Standard (192 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65014 
       encryption algorithm:   AES - Advanced Encryption Standard (128 bit keys). 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65015 
       encryption algorithm:   AES - Advanced Encryption Standard (128 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65016 
       encryption algorithm:   Three key triple DES 
       hash algorithm:         Secure Hash Standard 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65017 
       encryption algorithm:   Three key triple DES 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit 
  Protection suite of priority 65018 
       encryption algorithm:   DES - Data Encryption Standard (56 bit keys). 
       hash algorithm:         Message Digest 5 
       authentication method:  Pre-Shared Key 
       Diffie-Hellman group:   #2 (1024 bit) 
       lifetime:               86400 seconds, no volume limit

• show crypto isakmp sa: visualizza tutte le SA IKE correnti in un peer.

  pix506-635#show crypto isakmp sa
  Total     : 1
  Embryonic : 0
          dst               src        state     pending     created
        10.20.20.1       10.10.10.1    QM_IDLE         0           4
  pix506-635#

• show crypto ipsec sa: visualizza le SA IPsec generate tra peer.

  pix506-635#show crypto ipsec sa
  
  
  interface: outside
  Crypto map tag: _vpnc_cm, local addr. 10.10.10.1
  
  local ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0)
  remote ident (addr/mask/prot/port): (172.22.1.0/255.255.255.0/0/0)
  current_peer: 10.20.20.1:500
  PERMIT, flags={origin_is_acl,}
  #pkts encaps: 706, #pkts encrypt: 706, #pkts digest 706
  #pkts decaps: 655, #pkts decrypt: 655, #pkts verify 655
  #pkts compressed: 0, #pkts decompressed: 0
  #pkts not compressed: 0, #pkts compr. failed: 0, #pkts decompress f ailed: 0
  #send errors 1, #recv errors 0
  
  local crypto endpt.: 10.10.10.1, remote crypto endpt.: 10.20.20.1
  path mtu 1500, ipsec overhead 56, media mtu 1500
  current outbound spi: 9b94d824
  
  inbound esp sas:
  spi: 0x3ea12bbe(1050749886)
  transform: esp-des esp-md5-hmac ,
  in use settings ={Tunnel, }
  slot: 0, conn id: 3, crypto map: _vpnc_cm
  sa timing: remaining key lifetime (k/sec): (4607941/24712)
  IV size: 8 bytes
  replay detection support: Y
  
  
  inbound ah sas:
  
  
  inbound pcp sas:
  
  
  outbound esp sas:
  spi: 0x9b94d824(2610223140)
  transform: esp-des esp-md5-hmac ,
  in use settings ={Tunnel, }
  slot: 0, conn id: 4, crypto map: _vpnc_cm
  sa timing: remaining key lifetime (k/sec): (4607958/24712)
  IV size: 8 bytes
  replay detection support: Y
  
  
  outbound ah sas:
  
  
  outbound pcp sas:

• show vpnclient: visualizza le informazioni di configurazione del client VPN o del dispositivo remoto EasyVPN.

  pix506-635#show vpnclient
  
  LOCAL CONFIGURATION
  vpnclient server 10.20.20.1
  vpnclient mode network-extension-mode
  vpnclient vpngroup mytunnel password ********
  vpnclient username cisco password ********
  vpnclient enable
  
  DOWNLOADED DYNAMIC POLICY
  Current Server : 10.20.20.1
  PFS Enabled : No
  Secure Unit Authentication Enabled : No
  User Authentication Enabled : No
  Split Networks : 172.22.1.0/255.255.255.0
  Backup Servers : None
  
  pix506-635#

Risoluzione dei problemi

Le informazioni contenute in questa sezione permettono di risolvere i problemi relativi alla configurazione.

Se sono stati configurati il client hardware remoto EasyVPN e il server EasyVPN come descritto in questo documento e si verificano ancora problemi, raccogliere l'output di debug da ciascun PIX e l'output dei comandi show per l'analisi da parte del supporto tecnico Cisco. Vedere anche Risoluzione dei problemi relativi al PIX per il passaggio del traffico dati su un tunnel IPSec esistente o Risoluzione dei problemi di protezione IP - Informazioni e uso dei comandi di debug. Abilitare il debug IPSec sul PIX.

Nelle sezioni seguenti vengono visualizzati i comandi di debug PIX e l'output di esempio.

• Comandi server EasyVPN

• Comandi client hardware remoto EasyVPN

Lo strumento Output Interpreter (solo utenti registrati) (OIT) supporta alcuni comandi show. Usare l'OIT per visualizzare un'analisi dell'output del comando show.

Nota: consultare le informazioni importanti sui comandi di debug prima di usare i comandi di debug.

Comandi server EasyVPN

• debug crypto ipsec: visualizza le negoziazioni IPsec della fase 2.

• debug crypto isakmp: visualizza le negoziazioni ISAKMP della fase 1.

Di seguito è riportato un esempio di output.

ASA5520-704#debug crypto ipsec 2
ASA5520-704#debug crypto isakmp 2
ASA5520-704# Sep 15 23:02:42 [IKEv1]: IP = 10.10.10.1, Connection landed 
on tunnel_group mytunnel
Sep 15 23:02:43 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
User (cisco) authenticated.
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
PHASE 1 COMPLETED
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
IKE: requesting SPI!
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Security negotiation complete for User (cisco)  Responder, Inbound SPI = 0x436fbef1, 
Outbound SPI = 0x5c6b5137
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
IKE: requesting SPI!
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Starting P2 Rekey timer to expire in 27360 seconds
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
PHASE 2 COMPLETED (msgid=dc3aa1ef)
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Security negotiation complete for User (cisco)  Responder, Inbound SPI = 0x69352d74, 
Outbound SPI = 0x4a7e47fc
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Starting P2 Rekey timer to expire in 27360 seconds
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
PHASE 2 COMPLETED (msgid=58a397ad)

Comandi client hardware remoto EasyVPN

• debug crypto ipsec: visualizza le negoziazioni IPsec della fase 2.

• debug crypto isakmp: visualizza le negoziazioni ISAKMP della fase 1.

  pix506-635(config)#vpnclient enable
  
  ISAKMP (0): ID payload
  next-payload : 13
  type : 11
  protocol : 17
  port : 0
  length : 12pix506-635(config)#
  ISAKMP (0): Total payload length: 16
  ISAKMP (0:0): sending NAT-T vendor ID - rev 2 & 3
  ISAKMP (0): beginning Aggressive Mode exchange
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  OAK_AG exchange
  ISAKMP (0): processing SA payload. message ID = 0
  
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65001 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65002 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65003 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65004 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65005 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65006 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65007 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65008 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are not acceptable. Next payload is 0
  ISAKMP (0): Checking ISAKMP transform 9 against priority 65009 policy
  ISAKMP: encryption DES-CBC
  ISAKMP: hash MD5
  ISAKMP: default group 2
  ISAKMP: extended auth pre-share (init)
  ISAKMP: life type in seconds
  ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
  ISAKMP (0): atts are acceptable. Next payload is 0
  ISAKMP (0): processing KE payload. message ID = 0
  
  ISAKMP (0): processing NONCE payload. message ID = 0
  
  ISAKMP (0): processing ID payload. message ID = 0
  ISAKMP (0): processing HASH payload. message ID = 0
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  ISAKMP : attributes being requested
  
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  ISAKMP (0): beginning Quick Mode exchange, M-ID of 1567562998:5d6f1cf6IPSEC
  (key_engine): got a queue event...
  IPSEC(spi_response): getting spi 0x411cf95(68276117) for SA
  from 10.20.20.1 to 10.10.10.1 for prot 3
  
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  OAK_QM exchange
  oakley_process_quick_mode:
  OAK_QM_IDLE
  ISAKMP (0): processing SA payload. message ID = 1567562998
  
  ISAKMP : Checking IPSec proposal 1
  
  ISAKMP: transform 1, ESP_DES
  ISAKMP: attributes in transform:
  ISAKMP: SA life type in seconds
  ISAKMP: SA life duration (basic) of 28800
  ISAKMP: SA life type in kilobytes
  ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
  ISAKMP: encaps is 1
  ISAKMP: authenticator is HMAC-MD5
  ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request): 
  proposal part #1,
  (key eng. msg.) dest= 10.20.20.1, src= 10.10.10.1,
  dest_proxy= 172.22.1.0/255.255.255.0/0/0 (type=4),
  src_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
  protocol= ESP, transform= esp-des esp-md5-hmac ,
  lifedur= 0s and 0kb,
  spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4
  
  ISAKMP (0): processing NONCE payload. message ID = 1567562998
  
  ISAKMP (0): processing ID payload. message ID = 1567562998
  ISAKMP (0): processing ID payload. message ID = 1567562998
  ISAKMP (0): Creating IPSec SAs
  inbound SA from 10.20.20.1 to 10.10.10.1 (proxy 172.22.1.0 to 10.10.10.1)
  has spi 68276117 and conn_id 5 and flags 4
  lifetime of 28800 seconds
  lifetime of 4608000 kilobytes
  outbound SA from 10.10.10.1 to 10.20.20.1 (proxy 10.10.10.1 to 172.22.1.0)
  has spi 418090151 and conn_id 6 and flags 4
  lifetime of 28800 seconds
  lifetime of 4608000 kilobytesIPSEC(key_engine): got a queue event...
  IPSEC(initialize_sas): ,
  (key eng. msg.) dest= 10.10.10.1, src= 10.20.20.1,
  dest_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
  src_proxy= 172.22.1.0/255.255.255.0/0/0 (type=4),
  protocol= ESP, transform= esp-des esp-md5-hmac ,
  lifedur= 28800s and 4608000kb,
  spi= 0x411cf95(68276117), conn_id= 5, keysize= 0, flags= 0x4
  IPSEC(initialize_sas): ,
  (key eng. msg.) src= 10.10.10.1, dest= 10.20.20.1,
  src_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
  dest_proxy= 172.22.1.0/255.255.255.0/0/0 (type=4),
  protocol= ESP, transform= esp-des esp-md5-hmac ,
  lifedur= 28800s and 4608000kb,
  spi= 0x18eb8ca7(418090151), conn_id= 6, keysize= 0, flags= 0x4
  
  VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:2 
  Total VPN Peers:1
  VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:3 
  Total VPN Peers:1
  return status is IKMP_NO_ERROR
  ISAKMP (0): beginning Quick Mode exchange, 
  M-ID of 43279810:29465c2IPSEC(key_engine): got a queue event...
  IPSEC(spi_response): getting spi 0xa12022dd(2703237853) for SA
  from 10.20.20.1 to 10.10.10.1 for prot 3
  
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  OAK_QM exchange
  oakley_process_quick_mode:
  OAK_QM_IDLE
  ISAKMP (0): processing SA payload. message ID = 43279810
  
  ISAKMP : Checking IPSec proposal 1
  
  ISAKMP: transform 1, ESP_DES
  ISAKMP: attributes in transform:
  ISAKMP: SA life type in seconds
  ISAKMP: SA life duration (basic) of 28800
  ISAKMP: SA life type in kilobytes
  ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
  ISAKMP: encaps is 1
  ISAKMP: authenticator is HMAC-MD5
  ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request): proposal 
  part #1,
  (key eng. msg.) dest= 10.20.20.1, src= 10.10.10.1,
  dest_proxy= 10.20.20.1/255.255.255.255/0/0 (type=1),
  src_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
  protocol= ESP, transform= esp-des esp-md5-hmac ,
  lifedur= 0s and 0kb,
  spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4
  
  ISAKMP (0): processing NONCE payload. message ID = 43279810
  
  ISAKMP (0): processing ID payload. message ID = 43279810
  ISAKMP (0): processing ID payload. message ID = 43279810
  ISAKMP (0): Creating IPSec SAs
  inbound SA from 10.20.20.1 to 10.10.10.1 (proxy 10.20.20.1 to 10.10.10.1)
  has spi 2703237853 and conn_id 3 and flags 4
  lifetime of 28800 seconds
  lifetime of 4608000 kilobytes
  outbound SA from 10.10.10.1 to 10.20.20.1 (proxy 10.10.10.1 to 10.20.20.1)
  has spi 1010314457 and conn_id 4 and flags 4
  lifetime of 28800 seconds
  lifetime of 4608000 kilobytesIPSEC(key_engine): got a queue event...
  IPSEC(initialize_sas): ,
  (key eng. msg.) dest= 10.10.10.1, src= 10.20.20.1,
  dest_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
  src_proxy= 10.20.20.1/255.255.255.255/0/0 (type=1),
  protocol= ESP, transform= esp-des esp-md5-hmac ,
  lifedur= 28800s and 4608000kb,
  spi= 0xa12022dd(2703237853), conn_id= 3, keysize= 0, flags= 0x4
  IPSEC(initialize_sas): ,
  (key eng. msg.) src= 10.10.10.1, dest= 10.20.20.1,
  src_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
  dest_proxy= 10.20.20.1/255.255.255.255/0/0 (type=1),
  protocol= ESP, transform= esp-des esp-md5-hmac ,
  lifedur= 28800s and 4608000kb,
  spi= 0x3c382cd9(1010314457), conn_id= 4, keysize= 0, flags= 0x4
  
  VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:4 Total 
  VPN Peers:1
  VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:5 Total 
  VPN Peers:1
  return status is IKMP_NO_ERROR
  ISAKMP (0): sending NOTIFY message 36136 protocol 1
  crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
  ISAKMP (0): processing NOTIFY payload 36137 protocol 1
  spi 0, message ID = 1608818011
  ISAMKP (0): received DPD_R_U_THERE_ACK from peer 10.20.20.1
  return status is IKMP_NO_ERR_NO_TRANS
  pix506-635(config)#

• debug vpnclient: visualizza le negoziazioni specifiche del client VPN.

  pix506-635(config)#vpnclient enable
  pix506-635(config)# 44: VPNC CFG: transform set unconfig attempt done
  45: VPNC CLI: no isakmp keepalive 10 5
  46: VPNC CLI: no isakmp nat-traversal 20
  47: VPNC CFG: IKE unconfig successful
  48: VPNC CLI: no crypto map _vpnc_cm
  49: VPNC CFG: crypto map deletion attempt done
  50: VPNC CFG: crypto unconfig successful
  51: VPNC CLI: no global (outside) 65001
  52: VPNC CLI: no nat (inside) 0 access-list _vpnc_acl
  53: VPNC CFG: nat unconfig attempt failed
  54: VPNC CLI: no http 172.16.1.1 255.255.255.0 inside
  55: VPNC CLI: no http server enable
  56: VPNC CLI: no access-list _vpnc_acl
  57: VPNC CFG: ACL deletion attempt failed
  58: VPNC CLI: no crypto map _vpnc_cm interface outside
  59: VPNC CFG: crypto map de/attach failed
  60: VPNC CLI: no sysopt connection permit-ipsec
  61: VPNC CLI: sysopt connection permit-ipsec
  62: VPNC CFG: transform sets configured
  63: VPNC CFG: crypto config successful
  64: VPNC CLI: isakmp keepalive 10 5
  65: VPNC CLI: isakmp nat-traversal 20
  66: VPNC CFG: IKE config successful
  67: VPNC CLI: http 172.16.1.1 255.255.255.0 inside
  68: VPNC CLI: http server enable
  69: VPNC CLI: aaa-server _vpnc_nwp_server protocol tacacs+
  70: VPNC CLI: aaa-server _vpnc_nwp_server (outside) host 10.20.20.1
  71: VPNC CLI: access-list _vpnc_nwp_acl permit ip any 172.22.1.0 255.255.255.0
  72: VPNC CLI: aaa authentication match _vpnc_nwp_acl outbound _vpnc_nwp_server
  73: VPNC CLI: no access-list _vpnc_acl
  74: VPNC CFG: ACL deletion attempt failed
  75: VPNC CLI: access-list _vpnc_acl permit ip host 10.10.10.1 host 10.20.20.1
  76: VPNC CLI: crypto map _vpnc_cm 10 match address _vpnc_acl
  77: VPNC CFG: crypto map acl update successful
  78: VPNC CLI: no crypto map _vpnc_cm interface outside
  79: VPNC CLI: crypto map _vpnc_cm interface outside
  80: VPNC INF: IKE trigger request done
  81: VPNC INF: Constructing policy download req
  82: VPNC INF: Packing attributes for policy request
  83: VPNC INF: Attributes being requested
  84: VPNC ATT: ALT_SPLIT_INCLUDE
  85: VPNC INF:   172.22.1.0/255.255.255.0
  86: VPNC ATT: ALT_PFS: 0
  87: VPNC INF: Received application version 'Cisco Systems, Inc 
  ASA5520 Version 7.0(4) built by builders on Thu 13-Oct-05 21:43'
  88: VPNC ATT: ALT_CFG_SEC_UNIT: 0
  89: VPNC ATT: ALT_CFG_USER_AUTH: 0
  90: VPNC CLI: no aaa authentication match _vpnc_nwp_acl outbound _vpnc_nwp_server
  91: VPNC CLI: no access-list _vpnc_nwp_acl permit ip any 172.22.1.0 255.255.255.0
  92: VPNC CLI: no aaa-server _vpnc_nwp_server
  93: VPNC CLI: no access-list _vpnc_acl
  94: VPNC CLI: access-list _vpnc_acl permit ip 172.16.1.0 255.255.255.0 
  172.22.1.0 255.255.255.0
  95: VPNC CLI: access-list _vpnc_acl permit ip host 10.10.10.1 172.22.1.0 
  255.255.255.0
  96: VPNC CLI: access-list _vpnc_acl permit ip host 10.10.10.1 host 10.20.20.1
  97: VPNC CFG: _vpnc_acl ST define done
  98: VPNC CFG: Split DNS config attempt done
  99: VPNC CLI: crypto map _vpnc_cm 10 match address _vpnc_acl
  100: VPNC CFG: crypto map acl update successful
  101: VPNC CLI: no crypto map _vpnc_cm interface outside
  102: VPNC CLI: crypto map _vpnc_cm interface outside
  103: VPNC CLI: no global (outside) 65001
  104: VPNC CLI: no nat (inside) 0 access-list _vpnc_acl
  105: VPNC CFG: nat unconfig attempt failed
  106: VPNC CLI: nat (inside) 0 access-list _vpnc_acl
  107: VPNC INF: IKE trigger request done
  108: VPNC INF: IKE trigger request done
  
  pix506-635(config)#

Informazioni correlate

• Software Cisco PIX Firewall
• Riferimenti per i comandi di Cisco Secure PIX Firewall
• Avvisi sui prodotti per la sicurezza (inclusi PIX)
• RFC (Requests for Comments)
• Negoziazione IPSec/protocolli IKE
• Documentazione e supporto tecnico – Cisco Systems