How to create a GRE tunnel routed over a Policy-Based IPsec Site-to-Site VPN with a Pepwave MAX BR1 Pro 5G ?

Hi all,

I need some help to configure a GRE tunnel on Pepwave MAX BR1 Pro 5G.

Here is my actual configuration :
I have a GRE tunnel routed over a Policy-Based IPsec Site-to-Site VPN between 2 sites (site A and site B). On both site, an EdgeRouter4 is used.

On site A (EdgeRouter4):
Local network is 192.168.3.0/24
I add an address to the loopback interface : 10.255.4.1/32
I add a GRE tunnel (tun4) for site B :
address 10.255.104.1/30
local-ip 10.255.4.1
remote-ip 10.255.4.2

I create the VPN Policy-Based IPsec site A to site B :
local-ip : 10.255.4.1/32
remote-ip : 10.255.4.2/32

And finaly, I add a route :
192.168.4.0/24 on interface tun4

On site B (EdgeRouter4):
Local network is 192.168.4.0/24
I add an address to the loopback interface : 10.255.4.2/32
I add a GRE tunnel (tun4) for site A :
address 10.255.104.2/30
local-ip 10.255.4.2
remote-ip 10.255.4.1

I create the VPN Policy-Based IPsec site B to site A :
local-ip : 10.255.4.2/32
remote-ip : 10.255.4.1/32

And finaly, I add a route :
192.168.3.0/24 on interface tun4

This is working perfectly for site A and B.

Now…
I would like to create the same kind of configuration with the Pepwave MAX BR1 Pro 5G on site C to connect to site A.

On site A (EdgeRouter4):
I add an address to the loopback interface : 10.255.5.1/32
I add a GRE tunnel (tun5) for site C :
address 10.255.105.1/30
local-ip 10.255.5.1
remote-ip 10.255.5.2

I create the VPN Policy-Based IPsec site A to site C :
local-ip : 10.255.5.1/32
remote-ip : 10.255.5.2/32

And finaly, I add a route :
192.168.5.0/24 on interface tun5

On site C (Pepwave MAX BR1 Pro 5G) the Local network is 192.168.5.0/24

The IPsec VPN configuration is pretty simple. No question here.

But, I don’t know how to add and address to the loopback interface ?
And I don’t know how to configure a GRE Tunnel. What is the “Remote GRE IP Address” ?

Is this configuration even possible ?

Thanks for your help !

1 Like