GRE Interfaces

This section shows you how to configure a GRE Interface in the Gaia PortalClosed Web interface for the Check Point Gaia operating system. and the Gaia ClishClosed The name of the default command line shell in Check Point Gaia operating system. This is a restricted shell (role-based administration controls the number of commands available in the shell)..

Generic Routing Encapsulation (GRE) is an IP encapsulation protocol, which is used to transport IP packets over a network.

GRE allows routing of IP packets between private IPv4 networks, which are separated over public IPv4 Internet.

Notes:

Warning - By default, SecureXLClosed Check Point product on a Security Gateway that accelerates IPv4 and IPv6 traffic that passes through a Security Gateway. does not accelerate traffic over a GRE tunnel.

If you configure SecureXL to accelerate such traffic, the Firewall only inspects the payload of GRE packets (it does not inspect the GRE data).

For additional information, see sk169794.

Configuring GRE Interfaces in Gaia Portal

Configuring GRE interfaces in Gaia Clish

Syntax

Important - After you add, configure, or delete features, run the "save config" command to save the settings permanently.

Configuring GRE Interfaces on Cluster Members

For more information, see the R81 ClusterXL Administration Guide.

In ClusterClosed Two or more Security Gateways that work together in a redundant configuration - High Availability, or Load Sharing., you have these options: