Cisco ipsec vpn client main mode preshared keys
![cisco ipsec vpn client main mode preshared keys cisco ipsec vpn client main mode preshared keys](https://fortinetweb.s3.amazonaws.com/docs.fortinet.com/v2/resources/4afb0436-a998-11e9-81a4-00505692583a/images/76285c28c3458acefeb98648673727cb_IKEv1_process.png)
![cisco ipsec vpn client main mode preshared keys cisco ipsec vpn client main mode preshared keys](https://images.squarespace-cdn.com/content/v1/565b775de4b02fbb0a4961df/1501115006453-PPJW4I6XX29PS9N3WVM4/ke17ZwdGBToddI8pDm48kFfn5EjjMaNuNl9tvuOK5xgUqsxRUqqbr1mOJYKfIPR7LoDQ9mXPOjoJoqy81S2I8N_N4V1vUb5AoIIIbLZhVYxCRW4BPu10St3TBAUQYVKcH5c8wSpMn2PMXwwAGPp5ipbV1i7_4G5aeeD29MvZOnl1H6R_aZbdNhls758hpFuB/vpn2.png)
Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: Packet sent with a source address of 1.1.1.1 “%CRYPTO-6-IKMP_CRYPT_FAILURE: IKE (connection id 0) unable to decrypt (w/RSA private key) packet” Unfortunately, no matter how I tried to adjust configuration and debug packets, I still got following error:
![cisco ipsec vpn client main mode preshared keys cisco ipsec vpn client main mode preshared keys](https://filesship.com/wp-content/uploads/2020/02/download-40.jpg)
R1#debug crypto ipsec Crypto IPSEC debugging is on R1#debug crypto isakmp Crypto ISAKMP debugging is on R1#debug crypto engine Crypto Engine debugging is on R1#clear crypto session Do upper similar steps on R2 to generate R2 own private key and public key, also import R1’s public key. R1# sh crypto key mypubkey rsa % Key pair was generated at: 19:57:54 CST Key name: R1 Storage Device: private-config Usage: General Purpose Key Key is not exportable. R1(config)#crypto key pubkey-chain rsa R1(config-pubkey-chain)#addressed-key 2.2.2.2 encryption R1(config-pubkey-key)#key-string Enter a public key as a hexidecimal number …. R1#show crypto key mypubkey rsa R1 % Key pair was generated at: 19:57:54 CST Key name: R1 Storage Device: not specified Usage: General Purpose Key Key is not exportable. How many bits in the modulus : % Generating 512 bit RSA keys, keys will be non-exportable… Choosing a key modulus greater than 512 may take a few minutes. R1(config)# crypto key generate rsa general-keys label R1 The name for the keys will be: R1 Choose the size of the key modulus in the range of 360 to 2048 for your General Purpose Keys.