Hi guys,

what's the best way to configure the following:

site a:
IP 192.168.100.1/24

site b:
10.200.16.1/24

Site b also has a perimeter network of 172.18.16.2/24

Would you setup the gre using a local ip in the perimeter network of site b, or create a new range? Likewise with site a?

How are the two sites connected?

It's going to be via gre. Site a and b are the gateway addresses,