Ejemplo de Configuración de ASA VPN con Escenarios de Superposición
Contenido
Introducción
Este documento describe los pasos utilizados para traducir el tráfico VPN que viaja a través de un túnel IPsec de LAN a LAN (L2L) entre dos dispositivos de seguridad adaptables (ASA) en escenarios superpuestos y también la Traducción de direcciones de puerto (PAT) en el tráfico de Internet.
Prerequisites
Requirements
Asegúrese de haber configurado el dispositivo de seguridad adaptable de Cisco con direcciones IP en las interfaces y de tener conectividad básica antes de continuar con este ejemplo de configuración.
Componentes Utilizados
La información de este documento se basa en esta versión del software:
-
Cisco Adaptive Security Appliance Software versión 8.3 y posteriores.
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.
Antecedentes
Cada dispositivo tiene una red privada protegida detrás de ella. En escenarios superpuestos, la comunicación a través de la VPN nunca ocurre porque los paquetes nunca salen de la subred local ya que el tráfico se envía a una dirección IP de la misma subred. Esto se puede lograr con la traducción de direcciones de red (NAT), como se explica en las secciones siguientes.
Traducción en ambos terminales VPN
Cuando las redes protegidas por VPN se superponen y la configuración se puede modificar en ambos extremos; NAT se puede utilizar para traducir la red local a una subred diferente cuando se va a la subred traducida remota.
ASA 1
Crear los objetos necesarios para las subredes en uso
object network LOCAL subnet 192.168.1.0 255.255.255.0 object network XLATED-LOCAL subnet 192.168.2.0 255.255.255.0 object network XLATED-REMOTE subnet 192.168.3.0 255.255.255.0
Configuración de la Declaración NAT
Cree una instrucción manual para traducir la red local a una subred diferente sólo cuando vaya a la subred remota (también traducida)
nat (inside,outside) source static LOCAL XLATED-LOCAL destination static XLATED-REMOTE XLATED-REMOTE
Configure la ACL crypto con las subredes traducidas
access-list VPN-TRAFFIC extended permit ip object XLATED-LOCAL object XLATED-REMOTE Rele
Configuración criptográfica relevante
crypto ikev1 enable outside crypto ikev1 policy 1 authentication pre-share encryption aes-256 hash sha group 2 lifetime 86400 crypto ipsec ikev1 transform-set AES256-SHA esp-aes-256 esp-sha-hmac crypto ipsec security-association pmtu-aging infinite crypto map MYMAP 10 match address VPN-TRAFFIC crypto map MYMAP 10 set peer 172.16.2.1 crypto map MYMAP 10 set ikev1 transform-set AES256-SHA crypto map MYMAP interface outside tunnel-group 172.16.2.1 type ipsec-l2l tunnel-group 172.16.2.1 ipsec-attributes ikev1 pre-shared-key secure_PSK
ASA 2
Crear los objetos necesarios para las subredes en uso
object network LOCAL subnet 192.168.1.0 255.255.255.0 object network XLATED-LOCAL subnet 192.168.3.0 255.255.255.0 object network XLATED-REMOTE subnet 192.168.2.0 255.255.255.0
Configuración de la Declaración NAT
Cree una instrucción manual para traducir la red local a una subred diferente sólo cuando vaya a la subred remota (también traducida)
nat (inside,outside) source static LOCAL XLATED-LOCAL destination static XLATED-REMOTE XLATED-REMOTE
Configure la ACL crypto con las subredes traducidas
access-list VPN-TRAFFIC extended permit ip object XLATED-LOCAL object XLATED-REMOTE Rele
Configuración criptográfica relevante
crypto ikev1 enable outside crypto ikev1 policy 1 authentication pre-share encryption aes-256 hash sha group 2 lifetime 86400 crypto ipsec ikev1 transform-set AES256-SHA esp-aes-256 esp-sha-hmac crypto ipsec security-association pmtu-aging infinite crypto map MYMAP 10 match address VPN-TRAFFIC crypto map MYMAP 10 set peer 172.16.1.1 crypto map MYMAP 10 set ikev1 transform-set AES256-SHA crypto map MYMAP interface outside tunnel-group 172.16.1.1 type ipsec-l2l tunnel-group 172.16.1.1 ipsec-attributes ikev1 pre-shared-key secure_PSK
Verificación
Use esta sección para confirmar que su configuración funciona correctamente.
ASA 1
ASA1(config)# sh cry isa sa
IKEv1 SAs:
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: 172.16.2.1
Type : L2L Role : initiator
Rekey : no State : MM_ACTIVE
There are no IKEv2 SAs
ASA1(config)# show crypto ipsec sa
interface: outside
Crypto map tag: MYMAP, seq num: 10, local addr: 172.16.1.1
access-list VPN-TRAFFIC extended permit ip 192.168.2.0 255.255.255.0 192.168.3.0 255.255.255.0
local ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.3.0/255.255.255.0/0/0)
current_peer: 172.16.2.1
#pkts encaps: 9, #pkts encrypt: 9, #pkts digest: 9
#pkts decaps: 9, #pkts decrypt: 9, #pkts verify: 9
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 9, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 172.16.1.1/0, remote crypto endpt.: 172.16.2.1/0
path mtu 1500, ipsec overhead 74(44), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: F90C149A
current inbound spi : 6CE656C7
inbound esp sas:
spi: 0x6CE656C7 (1827034823)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 16384, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (3914999/28768)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x000003FF
outbound esp sas:
spi: 0xF90C149A (4178318490)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 16384, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (3914999/28768)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
ASA 2
ASA2(config)# show crypto isa sa
IKEv1 SAs:
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: 172.16.1.1
Type : L2L Role : responder
Rekey : no State : MM_ACTIVE
There are no IKEv2 SAs
ASA2(config)# show crypto ipsec sa
interface: outside
Crypto map tag: MYMAP, seq num: 10, local addr: 172.16.2.1
access-list VPN-TRAFFIC extended permit ip 192.168.3.0 255.255.255.0 192.168.2.0 255.255.255.0
local ident (addr/mask/prot/port): (192.168.3.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
current_peer: 172.16.1.1
#pkts encaps: 9, #pkts encrypt: 9, #pkts digest: 9
#pkts decaps: 9, #pkts decrypt: 9, #pkts verify: 9
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 9, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 172.16.2.1/0, remote crypto endpt.: 172.16.1.1/0
path mtu 1500, ipsec overhead 74(44), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: 6CE656C7
current inbound spi : F90C149A
inbound esp sas:
spi: 0xF90C149A (4178318490)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 12288, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (4373999/28684)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x000003FF
outbound esp sas:
spi: 0x6CE656C7 (1827034823)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 12288, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (4373999/28683)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
Topología de radios y concentradores con radios superpuestas
En la siguiente topología, ambos radios tienen la misma subred que debe protegerse sobre el túnel IPsec hacia el concentrador. Para facilitar la administración en los radios, la configuración NAT para solucionar el problema de superposición se realiza solamente en el Hub.
ASA1
Crear los objetos necesarios para las subredes en uso
object network LOCAL subnet 10.10.10.0 255.255.255.0 object network SPOKES-NETWORK subnet 192.168.2.0 255.255.255.0 object network LOCAL-XLATE-TO-SPOKE1 subnet 10.20.20.0 255.255.255.0 object network LOCAL-XLATE-TO-SPOKE2 subnet 10.30.30.0 255.255.255.0 object network REMOTE-XLATE-SPOKE1 subnet 192.168.3.0 255.255.255.0 object network REMOTE-XLATE-SPOKE2 subnet 192.168.4.0 255.255.255.0
Cree instrucciones manuales para traducir:
- La red local 10.10.10.0 /24 a 10.20.20.0 /24 cuando se dirige a SPOKE1 (192.168.2.0 /24).
- La red SPOKE1 192.168.2.0 /24 a 192.168.3.0 /24 cuando llega a 10.20.20.0 /24.
- La red local 10.10.10.0 /24 a 10.30.30.0 /24 cuando se va a SPOKE3 (192.168.2.0 /24).
- La red SPOKE2 192.168.2.0 /24 a 192.168.4.0 /24 cuando llega a 10.30.30.0 /24.
nat (inside,outside) source static LOCAL LOCAL-XLATE-SPOKE1 destination static REMOTE-XLATE-SPOKE1 SPOKES-NETWORK nat (inside,outside) source static LOCAL LOCAL-XLATE-SPOKE2 destination static REMOTE-XLATE-SPOKE2 SPOKES-NETWORK
Configure la ACL crypto con las subredes traducidas
access-list VPN-to-SPOKE1 extended permit ip object LOCAL-XLATE-SPOKE1 object SPOKES-NETWORKS access-list VPN-to-SPOKE2 extended permit ip object LOCAL-XLATE-SPOKE2 object SPOKES-NETWORKS
Configuración criptográfica relevante
crypto ikev1 enable outside crypto ikev1 policy 1 authentication pre-share encryption aes-256 hash sha group 2 lifetime 86400 crypto ipsec ikev1 transform-set AES256-SHA esp-aes-256 esp-sha-hmac crypto ipsec security-association pmtu-aging infinite crypto map MYMAP 10 match address VPN-to-SPOKE1 crypto map MYMAP 10 set peer 172.16.2.1 crypto map MYMAP 10 set ikev1 transform-set AES256-SHA crypto map MYMAP 20 match address VPN-to-SPOKE2 crypto map MYMAP 20 set peer 172.16.3.1 crypto map MYMAP 20 set ikev1 transform-set AES256-SHA crypto map MYMAP interface outside tunnel-group 172.16.2.1 type ipsec-l2l tunnel-group 172.16.2.1 ipsec-attributes ikev1 pre-shared-key secure_PSK tunnel-group 172.16.3.1 type ipsec-l2l tunnel-group 172.16.3.1 ipsec-attributes ikev1 pre-shared-key secure_PSK
ASA2 (SPOKE1)
Configure la ACL crypto que va a la subred traducida (10.20.20.0 /24)
access-list VPN-TRAFFIC extended permit ip 192.168.2.0 255.255.255.0 10.20.20.0 255.255.255.0
Configuración criptográfica relevante
crypto ikev1 enable outside crypto ikev1 policy 1 authentication pre-share encryption aes-256 hash sha group 2 lifetime 86400 crypto ipsec ikev1 transform-set esp-aes-256 esp-sha-hmac crypto ipsec security-association pmtu-aging infinite crypto map MYMAP 10 match address VPN-TRAFFIC crypto map MYMAP 10 set peer 172.16.1.1 crypto map MYMAP 10 set ikev1 transform-set AES256-SHA crypto map MYMAP interface outside tunnel-group 172.16.1.1 type ipsec-l2l tunnel-group 172.16.1.1 ipsec-attributes ikev1 pre-shared-key secure_PSK
R1 (SPOKE2)
Configure la ACL crypto que va a la subred traducida (10.30.30.0 /24)
ip access-list extended VPN-TRAFFIC permit ip 192.168.2.0 0.0.0.255 10.30.30.0 0.0.0.255
Configuración criptográfica relevante
crypto isakmp policy 1
encr aes 256
authentication pre-share
group 2
crypto isakmp key secure_PSK address 172.16.1.1
crypto ipsec transform-set AES256-SHA esp-aes 256 esp-sha-hmac
mode tunnel
crypto map MYMAP 10 ipsec-isakmp
set peer 172.16.1.1
set transform-set AES256-SHA
match address VPN-TRAFFIC
interface GigabitEthernet0/1
ip address 172.16.3.1 255.255.255.0
duplex auto
speed auto
media-type rj45
crypto map MYMAP
Verificación
ASA 1
ASA1(config)# show crypto isakmp sa
IKEv1 SAs:
Active SA: 2
Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)
Total IKE SA: 2
1 IKE Peer: 172.16.3.1
Type : L2L Role : responder
Rekey : no State : MM_ACTIVE
2 IKE Peer: 172.16.2.1
Type : L2L Role : responder
Rekey : no State : MM_ACTIVE
There are no IKEv2 SAs
ASA1(config)# show crypto ipsec sa
interface: outside
Crypto map tag: MYMAP, seq num: 10, local addr: 172.16.1.1
access-list VPN-to-SPOKE1 extended permit ip 10.20.20.0 255.255.255.0 192.168.2.0 255.255.255.0
local ident (addr/mask/prot/port): (10.20.20.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
current_peer: 172.16.2.1
#pkts encaps: 10, #pkts encrypt: 9, #pkts digest: 10
#pkts decaps: 10, #pkts decrypt: 9, #pkts verify: 10
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 9, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 172.16.1.1/0, remote crypto endpt.: 172.16.2.1/0
path mtu 1500, ipsec overhead 74(44), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: 79384296
current inbound spi : 2189BF7A
inbound esp sas:
spi: 0x2189BF7A (562675578)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 12288, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (3914999/28618)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x000003FF
outbound esp sas:
spi: 0x79384296 (2033730198)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 12288, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (3914999/28618)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
Crypto map tag: MYMAP, seq num: 20, local addr: 172.16.1.1
access-list VPN-to-SPOKE2 extended permit ip 10.30.30.0 255.255.255.0 192.168.2.0 255.255.255.0
local ident (addr/mask/prot/port): (10.30.30.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
current_peer: 172.16.3.1
#pkts encaps: 10, #pkts encrypt: 10, #pkts digest: 10
#pkts decaps: 10, #pkts decrypt: 10, #pkts verify: 10
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 4, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 172.16.1.1/0, remote crypto endpt.: 172.16.3.1/0
path mtu 1500, ipsec overhead 74(44), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: 65FDF4F5
current inbound spi : 05B7155D
inbound esp sas:
spi: 0x05B7155D (95884637)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 8192, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (3914999/2883)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x0000001F
outbound esp sas:
spi: 0x65FDF4F5 (1711142133)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 8192, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (3914999/2883)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
ASA2 (SPOKE1)
ASA2(config)# show crypto isakmp sa
IKEv1 SAs:
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: 172.16.1.1
Type : L2L Role : initiator
Rekey : no State : MM_ACTIVE
There are no IKEv2 SAs
ASA2(config)# show crypto ipsec sa
interface: outside
Crypto map tag: MYMAP, seq num: 10, local addr: 172.16.2.1
access-list VPN-TRAFFIC extended permit ip 192.168.2.0 255.255.255.0 10.20.20.0 255.255.255.0
local ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (10.20.20.0/255.255.255.0/0/0)
current_peer: 172.16.1.1
#pkts encaps: 10, #pkts encrypt: 10, #pkts digest: 10
#pkts decaps: 10, #pkts decrypt: 10, #pkts verify: 10
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 9, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: 172.16.2.1/0, remote crypto endpt.: 172.16.1.1/0
path mtu 1500, ipsec overhead 74(44), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: 2189BF7A
current inbound spi : 79384296
inbound esp sas:
spi: 0x79384296 (2033730198)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 8192, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (4373999/28494)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x000003FF
outbound esp sas:
spi: 0x2189BF7A (562675578)
transform: esp-aes-256 esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 8192, crypto-map: MYMAP
sa timing: remaining key lifetime (kB/sec): (4373999/28494)
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
R1 (SPOKE2)
R31show crypto isakmp sa IPv4 Crypto ISAKMP SA dst src state conn-id status 172.16.1.1 172.16.3.1 QM_IDLE 1001 ACTIVE IPv6 Crypto ISAKMP SA
R1#show crypto ipsec sa
interface: GigabitEthernet0/1
Crypto map tag: MYMAP, local addr 172.16.3.1
protected vrf: (none)
local ident (addr/mask/prot/port): (192.168.2.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (10.30.30.0/255.255.255.0/0/0)
current_peer 172.16.1.1 port 500
PERMIT, flags={origin_is_acl,}
#pkts encaps: 10, #pkts encrypt: 10, #pkts digest: 10
#pkts decaps: 10, #pkts decrypt: 10, #pkts verify: 10
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0
#pkts not decompressed: 0, #pkts decompress failed: 0
#send errors 0, #recv errors 0
local crypto endpt.: 172.16.3.1, remote crypto endpt.: 172.16.1.1
plaintext mtu 1438, path mtu 1500, ip mtu 1500, ip mtu idb GigabitEthernet0/1
current outbound spi: 0x5B7155D(95884637)
PFS (Y/N): N, DH group: none
inbound esp sas:
spi: 0x65FDF4F5(1711142133)
transform: esp-256-aes esp-sha-hmac ,
in use settings ={Tunnel, }
conn id: 1, flow_id: SW:1, sibling_flags 80004040, crypto map: MYMAP
sa timing: remaining key lifetime (k/sec): (4188495/2652)
IV size: 16 bytes
replay detection support: Y
Status: ACTIVE(ACTIVE)
inbound ah sas:
inbound pcp sas:
outbound esp sas:
spi: 0x5B7155D(95884637)
transform: esp-256-aes esp-sha-hmac ,
in use settings ={Tunnel, }
conn id: 2, flow_id: SW:2, sibling_flags 80004040, crypto map: MYMAP
sa timing: remaining key lifetime (k/sec): (4188495/2652)
IV size: 16 bytes
replay detection support: Y
Status: ACTIVE(ACTIVE)
outbound ah sas:
outbound pcp sas:
Troubleshoot
En esta sección encontrará información que puede utilizar para solucionar problemas de configuración.
Despeje las asociaciones de seguridad
Cuando resuelva problemas, asegúrese de borrar las SA existentes después de realizar un cambio. En el modo privilegiado del PIX, use estos comandos:
-
clear crypto ipsec sa - Elimina las SAs IPsec activas.
-
clear crypto isakmp sa - Elimina las SA IKE activas.
Revisar configuración NAT
-
show nat detail - Muestra la configuración de NAT con los objetos / grupos de objetos expandidos
Comandos para resolución de problemas
Use esta sección para confirmar que su configuración funciona correctamente.
El Analizador de Cisco CLI (solo clientes registrados) admite determinados comandos show. Utilice el Analizador de Cisco CLI para ver un análisis de los resultados del comando show.
-
debug crypto ipsec - Muestra los IPSec Negotiations de la Fase 2.
-
debug crypto isakmp - Muestra las negociaciones ISAKMP para la fase 1.
Información Relacionada
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