Exemplo de configuração de VPN ASA com cenários sobrepostos
Contents
Introduction
Este documento descreve as etapas usadas para converter o tráfego VPN que viaja através de um túnel IPsec de LAN para LAN (L2L) entre dois Adaptive Security Appliances (ASA) em cenários sobrepostos e também a Port Address Translation (PAT), o tráfego da Internet.
Prerequisites
Requirements
Certifique-se de ter configurado o Cisco Adaptive Security Appliance com endereços IP nas interfaces e ter conectividade básica antes de prosseguir com este exemplo de configuração.
Componentes Utilizados
As informações aqui são baseadas nesta versão de software:
-
Cisco Adaptive Security Appliance Software versão 8.3 e posterior.
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.
Informações de Apoio
Cada dispositivo tem uma rede privada protegida por trás dela. Em cenários de sobreposição, a comunicação através da VPN nunca acontece porque os pacotes nunca deixam a sub-rede local, já que o tráfego é enviado para um endereço IP da mesma sub-rede. Isso pode ser realizado com a Network Address Translation (NAT), conforme explicado nas seções a seguir.
Tradução em ambos os endpoints VPN
Quando as redes protegidas por VPN se sobrepõem e a configuração pode ser modificada em ambos os endpoints; O NAT pode ser usado para converter a rede local em uma sub-rede diferente ao ir para a sub-rede traduzida remota.
ASA 1
Criar os objetos necessários para as sub-redes em 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
Configurar a instrução NAT
Crie uma instrução manual para converter a rede local em uma sub-rede diferente somente ao ir para a sub-rede remota (também traduzida)
nat (inside,outside) source static LOCAL XLATED-LOCAL destination static XLATED-REMOTE XLATED-REMOTE
Configurar a ACL de criptografia com as sub-redes traduzidas
access-list VPN-TRAFFIC extended permit ip object XLATED-LOCAL object XLATED-REMOTE Rele
Configuração de criptografia 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
Criar os objetos necessários para as sub-redes em 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
Configurar a instrução NAT
Crie uma instrução manual para converter a rede local em uma sub-rede diferente somente ao ir para a sub-rede remota (também traduzida)
nat (inside,outside) source static LOCAL XLATED-LOCAL destination static XLATED-REMOTE XLATED-REMOTE
Configurar a ACL de criptografia com as sub-redes traduzidas
access-list VPN-TRAFFIC extended permit ip object XLATED-LOCAL object XLATED-REMOTE Rele
Configuração de criptografia 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
Verificar
Use esta seção para confirmar se a sua configuração funciona corretamente.
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
Topologia de hub e spoke com spokes sobrepostos
Na topologia a seguir, ambos os spokes têm a mesma sub-rede que precisa ser protegida pelo túnel IPsec em direção ao Hub. Para facilitar o gerenciamento nos spokes, a configuração de NAT para solucionar o problema de sobreposição é executada somente no hub.
ASA1
Criar os objetos necessários para as sub-redes em 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
Criar instruções manuais para traduzir:
- A rede local 10.10.10.0 /24 a 10.20.20.0 /24 ao ir para o SPOKE1 (192.168.2.0 /24).
- A rede SPOKE1 192.168.2.0 /24 a 192.168.3.0 /24 quando chega a 10.20.20.0 /24.
- A rede local 10.10.10.0 /24 a 10.30.30.0 /24 ao ir para o SPOKE3 (192.168.2.0 /24).
- A rede SPOKE2 192.168.2.0 /24 a 192.168.4.0 /24 quando chega 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
Configurar a ACL de criptografia com as sub-redes traduzidas
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
Configuração de criptografia 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 a ACL de criptografia indo para a sub-rede convertida (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
Configuração de criptografia 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 a ACL de criptografia indo para a sub-rede convertida (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
Configuração de criptografia 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
Verificar
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
Esta seção fornece informações que podem ser usadas para o troubleshooting da sua configuração.
Cancele associações de segurança
Ao solucionar problemas, certifique-se de limpar as SAs existentes após fazer uma alteração. No modo privilegiado do PIX, use estes comandos:
-
clear crypto ipsec sa - Exclui as SAs IPsec ativas.
-
clear crypto isakmp sa - Exclui as SAs IKE ativas.
Revisar a configuração do NAT
-
show nat detail - Exibe a configuração de NAT com os objetos / grupos de objetos expandidos
Comandos para Troubleshooting
Use esta seção para confirmar se a sua configuração funciona corretamente.
O Cisco CLI Analyzer (somente clientes registrados) aceita alguns comandos show. Use o Cisco CLI Analyzer para visualizar uma análise da saída do comando show.
-
debug crypto isakmp – Exibe as negociações IPSec da Fase 2.
-
debug crypto isakmp – Exibe as negociações ISAKMP da Fase 1.
Informações Relacionadas
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