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Policy-based tunnels use access-lists to identify what Routing can also be set-up on this point-to-point interface. That use other end of the tunnel as next hop after route lookup. Point-to-point interface between two gateways.

Route-based tunnel is usually represented as Layer 3 Options are Diffie-HellmanĪES-256-CBC, DES and additional algorithms – AES-128-CCM, AES-128-GCM,Īnd the final piece of the information is what traffic should be encrypted and whether tunnel to be setup is policy or route-based.ĭifference between route- and policy-based IPSec VPN tunnels? Secrecy (PFS), creates independent key for Phase 2. Public-key based encryption – Perfect Forward.Payload (ESP) or less common due to lack of encryption capability – Authentication Protocol – commonly used Encapsulating Security.Similar parameters must match for Phase 2 (or IPSec SA): Authentication (SHA1, SHA256, SHA384, SHA512 and.Options are Diffie-Hellman (DH) Groups 1, 2, 5, 14, 19 Public-key based encryption for symmetrical.The next set of parameters is required for IKE Phase 1 SA They are simpler to configure, and in many cases are the only option if the tunnel is established with a partner or a client. In my personal experience, majority of tunnels are using pre-shared keys. Options are pre-shared keys (PSK) or certificates. Once the IKE version is known, authentication type must be agreed on. Is more recent and has many improvements over the first version, so it should Palo Alto Network supports both versions of protocol. There are 2 versions, which must match between gateways It’s operation in relation to setting up IKE SA is Protocol that is responsible for setting up these SAs is Attributes are cryptographic algorithms and keys.Įach Security Association is unidirectional and has an ID. Which are agreed set of security attributes that both sides of a tunnel will be IPSec relies on Security Associations to be established, However, there might be cases in which you need to setup tunnel to a partner which can be using firewall from different vendor. Generally, it is relatively simple to establish a tunnel when you control devices on both sides of the tunnel.