Authentication: In this example, we are using the pre-shared key as authentication).Hash: md5 ( md5 is a hashing algorithm.Encryption: 3des (It is used to encrypt the Phase1 traffic).Now, let’s understand the meaning of each command. Access the global configuration mode of Cisco ASA and start with below commands: Configuring the Phase1 (IKEv1) on Cisco ASA ciscoasa(config)# crypto ikev1 policy 10Ĭiscoasa(config-ikev1-policy)# encryption 3desĬiscoasa(config-ikev1-policy)# authentication pre-shareĬiscoasa(config-ikev1-policy)# lifetime 86400 So, let’s start the configuration by configuring the Phase1 of Cisco ASA. Configuring the Extended ACL and Crypto Map.Defining the Tunnel Group and Pre-Shared Key.We need to configure the following steps to configure IPSec on Cisco ASA: Although, you can configure the IPSec tunnel on the Cisco Router first :). Success rate is 100 percent (5/5), round-trip min/avg/max = 20/28/30 ms Configuring the IPSec Tunnel on Cisco ASAįirst, we will configure the IPSec Tunnel on Cisco ASA Firewall. Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds:
So, Let’s start the configuration by checking the connectivity between both the devices. The LAN subnet of the remote network is 192.168.2.0/24. On the other hand, Cisco Router (R1) connected with ISP using a 2.2.2.2/30 subnet. The outside network is 1.1.1.1/30 and the Inside network is 192.168.1. Both Cisco ASA and Router have static routable IP addresses. In this example, I have a Cisco ASA firewall and Cisco Router. Scenario – How to Configure IPSec VPN between Cisco ASA and Cisco Router Analyzing the IPSec traffic through the Wireshark.Testing the IPSec tunnel by initiating the traffic from Cisco ASA.Configuring the IPSec Tunnel on Cisco Router.Configuring the Crypto MAP and Extended ACL to allows IPSec traffic on Cisco ASA.Configuring the Tunnel Group and Pre-Shared Key on Cisco ASA.Configuring the Phase1 (IKEv1) on Cisco ASA.Configuring the IPSec Tunnel on Cisco ASA.Scenario – How to Configure IPSec VPN between Cisco ASA and Cisco Router.
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