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How to Configure Ikev2 on Cisco Router

Last Updated on September 18, 2022 by Climent Rick

Ikev2 is a protocol that allows for secure communication between two devices. It is often used in conjunction with IPsec to provide a secure tunnel for data transfers. In this article, we will show you how to configure Ikev2 on a Cisco router.

Easy Explanation of IKEv2 and IPSEC Configuration

  • Download the Cisco IOS software image from the Cisco website
  • Connect to the router using a console cable and configure the router for internet access
  • Enter configuration mode and enter the following commands: crypto ikev2 policy 10 authentication pre-share encryption aes-256 group 2 lifetime 86400 interface GigabitEthernet0/0/0

How to Check Ike Version in Cisco Router

If you want to check which version of IOS your Cisco router is running, there are a few different ways that you can do this. One way is to log into the router and then enter the “show version” command. This will give you information about the IOS version as well as the hardware model and other details.

Another way to check the IOS version is to use the Cisco Feature Navigator tool. This tool lets you select the specific router model that you have and then displays information about which IOS versions are compatible with that model. You can also use the “show startup-config” or “show running-config” commands in order to view the IOS version number.

Keep in mind that these commands will only work if you have enabled certain features on your router, such as logging or NTP. Finally, if you need to find out even more detailed information about your router’s IOS, you can use the “debug platform software process mips” command. This will provide output from various processes within IOS and can be useful for troubleshooting purposes.

Cisco Ikev2

Cisco’s IKEv2 (Internet Key Exchange version 2) is a VPN protocol that provides a secure way to connect to a remote network. It uses strong cryptography to protect against eavesdropping and man-in-the-middle attacks, and it can be used with either IPsec or SSL/TLS encryption. IKEv2 is available on most Cisco routers and switches, as well as many other devices.

IKEv2 uses a “double encapsulation” method to encrypt data: first, the data is encrypted with IPSec; then, the IPSec packet is itself encrypted with SSL/TLS. This makes it very difficult for someone intercepting the data to decrypt it. IKEv2 also supports ” Perfect Forward Secrecy,” meaning that each session has its own unique encryption key that cannot be used to decrypt past sessions.

IKEv2 is particularly well-suited for mobile devices, because it can automatically re-establish a VPN connection if the user moves from one network to another (such as from a Wi-Fi hotspot to a cellular network). This “roaming” feature makes IKEv2 much more convenient than other VPN protocols for mobile users. If you’re looking for a secure and convenient way to connect to your corporate network or home network when you’re away from it, Cisco IKEv2 is an excellent choice.

Cisco Asr 1000 Ikev2 Configuration

If you’re looking to configure Cisco ASR 1000 IKEv2, you’ve come to the right place. In this blog post, we’ll go over all the necessary steps to get your Cisco ASR 1000 IKEv2 configuration up and running. First things first, let’s take a look at what IKEv2 is and why you might want to use it.

IKEv2 is a VPN protocol that offers increased security and performance over other protocols like IPSec or L2TP/IPSec. It’s perfect for organizations that need a high-security VPN solution that can handle large amounts of data traffic. Now that we know a little bit more about IKEv2, let’s get started with the configuration.

The first thing you’ll need to do is create an “IKEv2 profile” under VPN > Profiles in the Cisco ASR 1000 web interface. Give your profile a name and then select “IKEv2” as the type. Once you have your profile created, head over to the “Crypto Maps” section and create a new map.

Give your map a name and select the IKEv2 profile you just created from the drop-down menu. Then click “Add Crypto Map Entry”. On the next page, you’ll need to enter some basic information about your VPN connection.

Enter the IP address or hostname of your VPN server into the “Remote Peer Address” field. If you’re using a pre-shared key for authentication, enter it into the “Pre-Shared Key” field. Otherwise, leave this field blank and click “Generate Certificate Request”.

You’ll now be taken to a page where you can generate a certificate request for your ASR 1000 router. Fill out all of the required fields and click “Generate”. Once your request has been generated, save it to your computer and send it off to your CA (Certificate Authority) for signing.

Once you’ve received your signed certificate back from your CA, head back over to the Crypto Maps page in the Cisco ASR 1000 web interface and click on your map entry again. Paste your signed certificate into the “Local Certificate” field and click “Save Changes”. Your Cisco ASR 1000 IKEv2 configuration is now complete!

Cisco Ikev2 Policy Selection

Cisco’s IKEv2 (Internet Key Exchange version 2) is a VPN protocol that provides a secure way to exchange key information and establish IPsec security associations. It uses strong cryptography to ensure that only authorized users can access the network and that data cannot be intercepted or tampered with. IKEv2 supports both pre-shared keys (PSKs) and certificates for authentication.

PSKs are typically used for small networks or when ease of configuration is more important than security. Certificates provide the highest level of security but can be more difficult to configure. IKEv2 uses a “policy-based” approach to VPN configuration.

This means that you can specify exactly what traffic is allowed through the VPN and what security measures should be applied to it. For example, you can allow only certain IP addresses or subnets to access the VPN, or you can encrypt all traffic passing through the VPN. Policy selection is an important part of IKEv2 configuration.

The wrong policy can leave your network vulnerable to attack, so it’s important to understand how policies work before configuring one. A policy consists of two parts: a filter and an action. The filter defines what traffic will be affected by the policy, while the action defines what will happen to that traffic.

There are four possible actions: permit, deny, encrypt, and decrypt. Permit allows traffic that matches the filter criteria to pass through without any further action being taken. Deny blocks traffic that matches the filter criteria from passing through at all.

Encrypt encrypts traffic that matches the filter criteria using IPSec before it passes through; this ensures that eavesdroppers cannot read the contents of the packets even if they are able to intercept them. Decrypt decrypts IPSec-encrypted traffic before it passes through; this is necessary if you want devices on either side of the VPN to be able communicate with each other using IPSec encryption . which one should you use?

It depends on your needs! If security is paramount, then certificates are probably your best bet.

Cisco Ios-Xe Ikev2 Configuration

Cisco IOS-XE is a powerful network operating system used by enterprises and service providers around the world. It offers a wide range of features and capabilities, making it ideal for use in highly complex networks. One of the most important features of Cisco IOS-XE is its support for Internet Key Exchange Version 2 (IKEv2).

IKEv2 is a security protocol that helps to ensure the confidentiality and integrity of data exchanged between two devices. It does this by using cryptographic keys to encrypt data before it is sent over the network. Cisco IOS-XE supports IKEv2 through its strong cryptography module, which provides a high level of security for data transmissions.

When configuring Cisco IOS-XE for use with IKEv2, there are a few things to keep in mind. First, you will need to generate a public/private key pair for each device that will be participating in the VPN connection. Next, you will need to configure each device with the appropriate settings for IKEv2.

Finally, you will need to create an encrypted tunnel between the two devices using the IPsec protocol. The process of configuring Cisco IOS-XE for use with IKEv2 can seem daunting at first, but it is actually quite straightforward once you understand all of the steps involved. By following this guide, you should be able to get your VPN up and running in no time!

How to Configure Ikev2 on Cisco Router
How to Configure Ikev2 on Cisco Router 2


How Do I Enable Ikev2 on My Cisco Router?

IKEv2 is a VPN protocol that provides a secure connection between two devices. It is often used in conjunction with IPSec to provide a more secure connection. IKEv2 can be used with both IPv4 and IPv6 addresses.

To enable IKEv2 on your Cisco router, you will need to create a new profile and then apply the profile to your interface. 1) To create a new profile, open the Cisco Router Configuration Utility and go to VPN > Profiles > IKEv2. 2) Click the Add button to create a new profile.

3) Enter a name for the profile and click OK. 4) Select the Authentication Method as Pre-Shared Key and enter the key in the Shared Secret field. 5) Select the Phase 1 Proposal as AES-256-SHA1 and enter 2 in the DH Group field.

6) Click OK to save the changes. Now you will need to apply this new profile to your interface: 1) Go to Interfaces > Interface Management and select your interface from the list of available interfaces.

2) In the Security tab, select IKEv2 from the Encryption Protocol drop-down menu and select your newly created profile from the Profile Name drop-down menu.

Does Ikev2 Use Pre Shared Key?

IKEv2 uses a pre shared key for authentication. This is a shared secret between the two devices that are using IKEv2 for communication. The pre shared key is used to generate keys that are used to encrypt and decrypt the traffic between the two devices.

What Does Crypto Ikev2 Proposal Do?

IKEv2 is a security protocol that uses strong cryptography to secure Internet Protocol (IP) traffic. It is an extension of the Internet Key Exchange (IKE) protocol and provides for authenticated key exchange and encrypted data communication between two devices. IKEv2 supports both static and dynamic IP addresses and can be used in conjunction with other security protocols such as IPSec.

When using IKEv2, each device generates a unique cryptographic key that is used to encrypt and decrypt traffic between the two devices. This ensures that only the intended recipient can read the data, even if it is intercepted by a third party. IKEv2 also uses digital signatures to verify the identity of the devices involved in the communication, ensuring that the data cannot be tampered with or spoofed by a third party.

Crypto IKEv2 proposal does three things: first, it allows for authentication of both sides of an IKE conversation using pre-shared keys, RSA signatures, or ECDSA signatures; second, it defines new encryption algorithms for use with IKEv2, including AES-GCM and ChaCha20/Poly1305; and finally, it specifies how these new algorithms should be used with existing IKE deployments.

How Do I Get Ikev2?

IKEv2 is a VPN protocol that offers increased security and performance over other protocols, making it a great choice for use with a VPN. To get IKEv2, you will need to sign up for a VPN service that offers it as an option. Many popular VPN services offer IKEv2, so you should have no trouble finding one that meets your needs.

Once you have signed up for a VPN service, setting up IKEv2 is usually straightforward and can be done using the software provided by your VPN provider.


If you’re looking to configure Ikev2 on your Cisco router, there are a few things you need to do. First, you’ll need to enable the IKEv2 protocol by entering the ‘crypto ikev2 enable’ command. Next, you’ll need to specify the encryption and authentication algorithms that will be used.

Finally, you’ll need to specify a Pre-Shared Key (PSK) for authentication. Once all of this is configured, you should be able to establish an Ikev2 connection with another device.

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