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Create and enter IKEv2 policy configuration mode.Īsa1(config-ikev2-policy)# encryption aesĬonfigure the Pseudo-Random Function (PRF).Īsa1(config-ikev2-polocy)# lifetime seconds 86400Īsa1(config)# crypto ikev2 enable outsideĬreate an IKEv2 Proposal and enter proposal configuration mode.Īsa1(config)# crypto ipsec ikev2 ipsec-proposal ikev2-proposalĬonfigure the IKEv2 proposal encryption method.Īsa1(config-ipsec-proposal)# protocol esp encryption aesĬonfigure the IKEv2 proposal authentication method.Īsa1(config-ipsec-proposal)# protocol esp integrity sha-1Ĭreate an access-list to specify the interesting traffic to be encrypted within the IPsec tunnel.Īsa1(config)# access-list ikev2-list extended permit ip 192.168.1.0 255.255.255.0 172.16.1.0 255.255.255.0Īsa1(config)# tunnel-group 10.10.10.2 type ipsec-l2lĮnter IPsec tunnel attribute configuration mode.Īsa1(config)# tunnel-group 10.10.10.2 ipsec-attributesĬonfigure the local IPsec tunnel pre-shared key or certificate trustpoint.Īsa1(config-tunnel-ipsec)# ikev2 local-authentication pre-shared-key this_is_a_keyĬonfigure the remote IPsec tunnel pre-shared key or certificate trustpoint.Īsa1(config-tunnel-ipsec)# ikev2 remote-authentication pre-shared-key this_is_a_keyĬreate a crypto map and match based on the previously created ACL.Īsa1(config)# crypto map ikev2-map 1 match address ikev2-listĪsa1(config)# crypto map ikev2-map 1 set peer 10.10.10.2Īsa1(config)# crypto map ikev2-map 1 set ikev2 ipsec-proposal ikev2-proposalĪsa1(config)# crypto map ikev2-map interface outsideĪsa(config-ikev2-polocy)# lifetime seconds 86400Īsa(config)# crypto ipsec ikev2 ipsec-proposal ikev2-proposalĪsa(config-ipsec-proposal)# protocol esp encryption aesĬonfigure the IKEv2 proposal authentication methodĪsa(config-ipsec-proposal)# protocol esp integrity sha-1Īsa(config)# access-list ikev2-list extended permit ip 172.16.1.0 255.255.255.0 192.168.1.0 255.255.255.0Īsa(config)# tunnel-group 10.10.10.1 type ipsec-l2lĪsa(config)# tunnel-group 10.10.10.1 ipsec-attributesĪsa(config-tunnel-ipsec)# ikev2 local-authentication pre-shared-key this_is_a_keyĪsa(config-tunnel-ipsec)# ikev2 remote-authentication pre-shared-key this_is_a_keyĪsa(config)# crypto map ikev2-map 1 match address ikev2-listĪsa(config)# crypto map ikev2-map 1 set peer 10.10.10.1Īsa(config)# crypto map ikev2-map 1 set ikev2 ipsec-proposal ikev2-proposalĪsa(config)# crypto map ikev2-map interface outsideĪs is obvious from the examples shown in this article, the configuration of IPsec can be long, but the thing to really remember is that none of this is really all that complex once the basics of how the connection established has been learned.įor those reading this article with little or no IPsec experience, focus on the fundamentals of how the connection is made, including more in-depth coverage that is not covered in this article.
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