GRE TUNNEL CONFIGURATION ON PFSENSE FIREWALL 

 

NETWORK DIAGRAM:

 

 

STEPS:

1) On admin page: Interface > Assignments > GREs

2) Add : GRE Configuration:

   Parent Interface: VLAN1 (Interface on which 14.140.40.130 is configured)

   Remote Address: 14.140.40.108

   Local IPv4 tunnel address: 10.10.10.130

   Remote IPv4 address address: 11.11.11.13

   Subnet: As per your network scenario

   Add Static Route: Check this option to add the routes to remote LAN via GRE tunnel  


   STEP 2: 

> Add/Enable the GRE Tunnel Interface (In my case OPT3):

              

> Make sure you have the appropriate rules defines to allow the inbound and outbound traffic 

> In my case OPT3 is the GRE tunnel interface and I have allowed all the traffic to the GRE tunnel interface 

> I also have a rule to allow the traffic on to the interface VLAN1 (GRE physical interface)

 

 

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