![]() Also, here we need to configure the Crypto MAP and call the configured crypto map to the External Interface. Here, we need to define an Extended ACL to allow the traffic. This is the final step of our configuration. ![]() MD5: MD5 is a Hashing algorithm, which is used to maintain the data integrityĬonfiguring the Crypto MAP and Extended ACL to allows IPSec traffic on Cisco ASA.3DES: 3DES is one of the Encryption Algorithm.ESP: ESP Stands for Encapsulating Security Payload and it’s an IPSec Protocol.Now, let’s quickly understand this command. ciscoasa(config)# crypto ipsec ikev1 transform-set TSET esp-3des esp-md5-hmac Here, we need to define the Encryption and Authentication methods for IPSec Phase2. ciscoasa(config)# tunnel-group 2.2.2.2 type ipsec-l2lĬiscoasa(config)# tunnel-group 2.2.2.2 ipsec-attributesĬiscoasa(config-tunnel-ipsec)# ikev1 pre-shared-key GNS3NetworkĬiscoasa(config-tunnel-ipsec)#exit Configuring the IPSec IKEv1 Phase2 In this article, I’m using GNS3Network as a pre-shared key. ![]() Now, we need to define the tunnel interface and the Pre-Shared Key. So, we can do this using the below command: ciscoasa(config)# crypto ikev1 enable outside Configuring the Tunnel Group and Pre-Shared Key on Cisco ASA In the Cisco ASA, we need to enable the Crypto IKEv1 to the Internet-facing interface.
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