The outcome of this phase is the IKE SA, an agreement on keys and methods for IKE phase II. In terms of performance, the generation of the Diffie-Hellman Key is slow and heavy.

Key material (random bits and other mathematical data) as well as an agreement on methods for IKE phase II are exchanged between the peers.

The nature of the Diffie-Hellman protocol means that both sides can independently create the shared secret, a key which is known only to the peers. (More authentication methods are available when one of the peers is a remote access client.)

The peers authenticate, either by certificates or via a pre-shared secret.

Since the IPsec symmetrical keys are derived from this DH key shared between the peers, at no point are symmetric keys actually exchanged.

The Diffie-Hellman algorithm builds an encryption key known as a 'shared secret' from the private key of one party and the public key of the other. Both IKEv1 and IKEv2 are supported in Security Gateways of version R71 and higher.Дiffie-Hellman (DH) is that part of the IKE protocol used for exchanging the material from which the symmetrical keys are built. The first phase lays the foundations for the second. For this reason, IKE is composed of two phases. This agreement upon keys and methods of encryption must also be performed securely. The outcome of an IKE negotiation is a Security Association (SA). IKE builds the VPN tunnel by authenticating both sides and reaching an agreement on methods of encryption and integrity. This key then encrypts and decrypts the regular IP packets used in the bulk transfer of data between VPN peers. The goal of the Internet Key Exchange (IKE) is for both sides to independently produce the same symmetrical key. Information can be securely exchanged only if the key belongs exclusively to the communicating parties. The material used to build these keys must be exchanged in a secure fashion.

PAN and Check Point Edge VPN Config.In symmetric cryptographic systems, both communicating parties use the same key for encryption and decryption.

On the UTM-1 Edge, navigate to the Reports > Tunnels tab and verify that the tunnel is established:.

Verify that the lights are green for both Phase 1 and Phase 2 status.

On the Palo Alto Networks device, navigate to the Network Tab > IPSec Tunnels:.

Send a ping from each side to the other (if allowed by policies):.

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Set Security Methods Phase 1 and Phase 2 to Automatic:.

Enter the pre-shared key configured on the Palo Alto Networks device:.Choose Authentication method of Shared Secret:.Enter the IP Subnet(s) behind the Palo Alto Networks device:.Enter the IP of the Palo Alto Networks device (must be the same IP configured on the Palo Alto Networks as the Local IP above):.Add new rules to allow IKE/IPSec traffic between the gateways, and desired traffic inside the tunnel: Navigate to the Policies tab > Security.Be sure that the interface is the tunnel interface from above, and Next Hop is None.Open the appropriate VR, and add a static route to the networks behind the Edge device: Navigate to Network > Virtual Routers.Click Show advanced options and enter local and remote proxy IDs:.All other fields are populated automatically. Enter a name, choose the tunnel interface (above), and choose the IKE Gateway (above).Navigate to Network > IPSec Tunnels (click New):.Navigate toВ Network > Interfaces, and at the bottom of the page choose to create a new Tunnel Interface:.

Enter Remote IKE Gateway name, Local interface and IP, remote Gateway IP, and Pre-Shared Key.Navigate to Network > IKE Gateways (click New):.Note: This document is not relevant to Check Point VPN-1 running on Secure Platform, Nokia IPSO appliances, Solaris or Windows. The firmware versions used in this document are: All the named Check Point devices run SofaWareвЂ™s Embedded NGX code. The UTM-1 Edge might also be referred to as VPN-1 Edge, SofaWare, or appliances. This document outlines the basic steps involved in establishing a tunnel between a Palo Alto Networks device and a Check Point UTM-1 Edge.

Check point vpn-1 edge