![]() ![]() Without any hardware modules, the limitations are as follows:Īllowed command to increase the performance of a TCP flow on a (To configure the presharedįQDN host entry for each other in their configurations.Ĭommand to determine the software encryption limitations for your device. Have a certificate associated with the remote peer.įully qualified domain name (FQDN) on both peers. In some cases you might need to add a statement to your ACLs to explicitly permit UDP port 500 traffic. Because IKE negotiation uses User Datagram Protocol (UDP) on port 500, your ACLs must be configured so that UDP port 500 traffic is not blocked at interfaces used by IKE and IPsec. You should be familiar with the concepts and tasks explained in the moduleĬonfiguring Security for VPNs with IPsec.Įnsure that your Access Control Lists (ACLs) are compatible with IKE. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module. For the latest caveats and feature information, seeīug Search Tool and the release notes for your platform and software release. Your software release may not support all the features documented in this module. Next Generation Encryption (NGE) white paper. For more information about the latest Cisco cryptographic recommendations, see the Security threats, as well as the cryptographic technologies to help protect against them, are constantly changing. (ISAKMP, Oakley, and Skeme are security protocols implemented by IKE.) IKE is a hybrid protocol, that implements the Oakley key exchange and Skeme key exchange inside the Internet Security Association Key Management Protocol (ISAKMP) framework. IPsec can be configured without IKE, but IKE enhances IPsec by providing additional features, flexibility, and ease of configuration for the IPsec standard. IPsec is an IP security feature that provides robust authentication and encryption of IP packets. IKE is a key management protocol standard that is used in conjunction with the IPsec standard. This module describes how to configure the Internet Key Exchange (IKE) protocol for basic IP Security (IPsec) Virtual Private Networks (VPNs). Feature Information for Configuring IKE for IPsec VPNsĬonfiguring Internet Key Exchange for IPsec VPNs.Example: Configuring IKE Authentication. ![]() Configuration Examples for an IKE Configuration.Configuring an IKE Crypto Map for IPsec SA Negotiation.Configuring RSA Keys Manually for RSA Encrypted Nonces.ISAKMP Identity Setting for Preshared Keys.IKE Peers Agreeing Upon a Matching IKE Policy.IKE Policies Security Parameters for IKE Negotiation.Information About Configuring IKE for IPsec VPNs. ![]()
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