Ce document montre le cryptage d'un réseau en étoile; d'un routeur (le « hub ») à trois autres routeurs (les sites en étoile). Une cryptocarte dans le routeur central indique les réseaux utilisés par chacun de ses trois pairs. Les cryptocartes dans chaque routeur en étoile indiquent le réseau utilisé par le routeur central.
Le chiffrement est effectué entre ces réseaux :
Réseau 160.160.160.x vers réseau 170.170.170.x
Réseau 160.160.160.x vers réseau 180.180.180.x
Réseau 160.160.160.x vers réseau 190.190.190.x
Aucune spécification déterminée n'est requise pour ce document.
Les informations contenues dans ce document sont basées sur les versions de matériel et de logiciel suivantes :
Logiciel Cisco IOS® Version 12.0.7.T ou ultérieure
Routeurs Cisco 2500
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.
Pour plus d'informations sur les conventions des documents, référez-vous aux Conventions utilisées pour les conseils techniques de Cisco.
Cette section vous fournit des informations pour configurer les fonctionnalités décrites dans ce document.
Remarque : Pour en savoir plus sur les commandes utilisées dans le présent document, utilisez l’outil de recherche de commandes (clients inscrits seulement).
Ce document utilise la configuration réseau suivante :
Ce document utilise les configurations suivantes :
dr_whoovie Configuration |
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Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname dr_whoovie ! enable secret 5 $1$KxKv$cbqKsZtQTLJLGPN.tErFZ1 enable password ww ! ip subnet-zero ! cns event-service server !--- Configure the Internet Key Exchange (IKE) !--- policy and preshared key for each peer: !--- IKE policy defined for peers. crypto isakmp policy 1 authentication pre-share !--- Preshared keys for different peers. crypto isakmp key cisco170 address 150.150.150.2 crypto isakmp key cisco180 address 150.150.150.3 crypto isakmp key cisco190 address 150.150.150.4 !--- Configure the IPSec parameters: !--- IPSec transform sets. crypto ipsec transform-set 170cisco esp-des esp-md5-hmac crypto ipsec transform-set 180cisco esp-des esp-md5-hmac crypto ipsec transform-set 190cisco esp-des esp-md5-hmac ! crypto map ETH0 17 ipsec-isakmp !--- Set the peer. set peer 150.150.150.2 !--- The IPSec transform set is used for this tunnel. set transform-set 170cisco !--- Interesting traffic for peer 150.150.150.2. match address 170 crypto map ETH0 18 ipsec-isakmp !--- Set the peer. set peer 150.150.150.3 !--- The IPSec transform set is used for this tunnel. set transform-set 180cisco !--- Interesting traffic for peer 150.150.150.3. match address 180 crypto map ETH0 19 ipsec-isakmp !--- Set the peer. set peer 150.150.150.4 !--- The IPSec transform set is used for this tunnel. set transform-set 190cisco !--- Interesting traffic for peer 150.150.150.4. match address 190 ! interface Ethernet0 ip address 150.150.150.1 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache no mop enabled !--- Apply crypto map on the interface. crypto map ETH0 ! interface Serial0 ip address 160.160.160.1 255.255.255.0 no ip directed-broadcast no ip mroute-cache no fair-queue ! ip classless ip route 170.170.170.0 255.255.255.0 150.150.150.2 ip route 180.180.180.0 255.255.255.0 150.150.150.3 ip route 190.190.190.0 255.255.255.0 150.150.150.4 no ip http server ! !--- Access list that shows traffic to encryption from yertle. access-list 170 permit ip 160.160.160.0 0.0.0.255 170.170.170.0 0.0.0.255 !--- Access list that shows traffic to encryption from thidwick. access-list 180 permit ip 160.160.160.0 0.0.0.255 180.180.180.0 0.0.0.255 !--- Access list that shows traffic to encryption from sam-i-am. access-list 190 permit ip 160.160.160.0 0.0.0.255 190.190.190.0 0.0.0.255 dialer-list 1 protocol ip permit dialer-list 1 protocol ipx permit ! line con 0 transport input none line aux 0 line vty 0 4 password ww login end |
configuration sam-I-am |
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Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Sam-I-am ! enable secret 5 $1$HDyw$qubSJdqfIC0f1VLvHmg/P0 enable password ww ! ip subnet-zero ! isdn switch-type basic-5ess isdn voice-call-failure 0 cns event-service server !--- Configure the IKE policy and preshared key for the hub: crypto isakmp policy 1 authentication pre-share crypto isakmp key cisco190 address 150.150.150.1 !--- Configure the IPSec parameters: !--- IPSec transform set. crypto ipsec transform-set 190cisco esp-des esp-md5-hmac !--- Crypto map definition for the hub site. crypto map ETH0 19 ipsec-isakmp !--- Set the peer. set peer 150.150.150.1 !--- IPSec transform set. set transform-set 190cisco !--- Interesting traffic for peer 150.150.150.1 (hub site). match address 190 ! interface Ethernet0 ip address 150.150.150.4 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache no mop enabled !--- Apply crypto map on the interface. crypto map ETH0 ! interface Serial0 ip address 190.190.190.1 255.255.255.0 no ip directed-broadcast no ip mroute-cache no fair-queue ! ip classless ip route 160.160.160.0 255.255.255.0 150.150.150.1 no ip http server !--- Access list that shows traffic to encryption !--- for the hub site (dr_whoovie). access-list 190 permit ip 190.190.190.0 0.0.0.255 160.160.160.0 0.0.0.255 dialer-list 1 protocol ip permit dialer-list 1 protocol ipx permit ! line con 0 transport input none line aux 0 line vty 0 4 password ww login ! end |
configuration de thidwick |
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Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname thidwick ! enable secret 5 $1$Pcpo$fj4FNS1dEDY9lGg3Ne6FK1 enable password ww ! ip subnet-zero ! isdn switch-type basic-5ess isdn voice-call-failure 0 cns event-service server !--- Configure the IKE policy and preshared key for the hub: crypto isakmp policy 1 authentication pre-share crypto isakmp key cisco180 address 150.150.150.1 !--- Configure the IPSec parameters: !--- IPSec transform set. crypto ipsec transform-set 180cisco esp-des esp-md5-hmac !--- Crypto map definition for the hub site. crypto map ETH0 18 ipsec-isakmp !--- Set the peer. set peer 150.150.150.1 !--- IPSec transform set. set transform-set 180cisco !--- Interesting traffic for peer 150.150.150.1 (hub site). match address 180 ! interface Ethernet0 ip address 150.150.150.3 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache no mop enabled !--- Apply crypto map on the interface. crypto map ETH0 ! interface Serial1 ip address 180.180.180.1 255.255.255.0 no ip directed-broadcast clockrate 4000000 ! interface BRI0 no ip address no ip directed-broadcast shutdown isdn switch-type basic-5ess ! ip classless ip route 160.160.160.0 255.255.255.0 150.150.150.1 no ip http server !--- Access list that shows traffic to encryption !--- for the hub site (dr_whoovie). access-list 180 permit ip 180.180.180.0 0.0.0.255 160.160.160.0 0.0.0.255 dialer-list 1 protocol ip permit dialer-list 1 protocol ipx permit ! line con 0 transport input none line aux 0 line vty 0 4 password ww login ! end |
Configuration du yertle |
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Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname yertle ! enable secret 5 $1$me5Q$2kF5zKlPPTvHEBdGiEZ9m/ enable password ww ! ip subnet-zero ! cns event-service server !--- Configure the IKE policy and preshared key for the hub: crypto isakmp policy 1 authentication pre-share crypto isakmp key cisco170 address 150.150.150.1 !--- Configure the IPSec parameters: !--- IPSec transform set. crypto ipsec transform-set 170cisco esp-des esp-md5-hmac !--- Crypto map definition for the hub site. crypto map ETH0 17 ipsec-isakmp !--- Set the peer. set peer 150.150.150.1 !--- IPSec transform set. set transform-set 170cisco !--- Interesting traffic for peer 150.150.150.1 (hub site). match address 170 ! interface Ethernet0 ip address 150.150.150.2 255.255.255.0 no ip directed-broadcast no ip route-cache no ip mroute-cache no mop enabled !--- Apply crypto map on the interface. crypto map ETH0 ! interface Serial0 no ip address no ip directed-broadcast no ip mroute-cache shutdown no fair-queue ! interface Serial1 ip address 170.170.170.1 255.255.255.0 no ip directed-broadcast ! ip classless ip route 160.160.160.0 255.255.255.0 150.150.150.1 no ip http server !--- Access list that shows traffic to encryption for !--- the hub site (dr_whoovie). access-list 170 permit ip 170.170.170.0 0.0.0.255 160.160.160.0 0.0.0.255 dialer-list 1 protocol ip permit dialer-list 1 protocol ipx permit ! tftp-server flash:/c2500-jos56i-l.120-7.T tftp-server flash:c2500-jos56i-l.120-7.T tftp-server flash: ! line con 0 transport input none line aux 0 line vty 0 4 password ww login ! end |
Cette section présente des informations que vous pouvez utiliser pour vous assurer que votre configuration fonctionne correctement.
Certaines commandes show sont prises en charge par l'Output Interpreter Tool (clients enregistrés uniquement), qui vous permet de voir une analyse de la sortie de la commande show.
show crypto ipsec sa - Montre les associations de sécurisation de phase 2.
show crypto isakmp sa - Montre les associations de sécurisation de phase 1.
Cette section fournit des informations que vous pouvez utiliser pour dépanner votre configuration.
Remarque : avant d'émettre des commandes debug, reportez-vous à Informations importantes sur les commandes de débogage.
debug crypto ipsec — affiche les négociations IPsec de la Phase 2.
debug crypto isakmp — affiche les négociations ISAKMP de la Phase 1.
debug crypto engine : Cette commande affiche le trafic chiffré.
clear crypto isakmp : efface les associations de sécurité liées à la phase 1.
clear crypto sa : efface les associations de sécurité liées à la phase 2.