Network > GRE Tunnels
Create a GRE tunnel to encapsulate a payload protocol and connect two endpoints in a point-to-point, logical link.
Generic Routing Encapsulation (GRE) tunnel protocol is a carrier protocol that encapsulates a payload protocol. The GRE packet itself is encapsulated in a transport protocol (IPv4 or IPv6). The GRE tunnel connects two endpoints in a point-to-point, logical link between the firewall and a router (or another firewall). Palo Alto Networks firewalls support termination of a GRE tunnel.
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Building blocks of a GRE tunnel
How to provide interoperability with another vendor’s tunnel endpoint
Select Add GRE Encapsulation when you create an IPSec tunnel.
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Network The following topics describe the firewall network settings. Network > Virtual Wires Network > Interfaces Network > Virtual Routers Network > Zones Network > ...
GRE Tunneling Support
The firewall can terminate a GRE tunnel to connect two endpoints in a point-to-point, logical link. ...
Create a GRE Tunnel
Create a GRE tunnel to connect two endpoints in a point-to-point, logical link. ...
Configure Tunnel Content Inspection
Configure Tunnel Content Inspection Perform this task to configure tunnel content inspection for a tunnel protocol that you allow through a tunnel. Create a Security ...
IPSec Tunnel General Tab
IPSec Tunnel General Tab Network > IPSec Tunnels > General Use the following fields to set up an IPSec tunnel. IPSec Tunnel General Settings Description ...
Policies > Tunnel Inspection
Policies > Tunnel Inspection You can configure the firewall to inspect the traffic content of the following cleartext tunnel protocols: Generic Routing Encapsulation (GRE) General ...