Grandstream Networks GWN70 Series User Manual page 56

The branch o ce router needs to connect to the Headquarters o ce via an IPSec tunnel, on each side we have a GWN70xx router. Users can
con gure the two devices as follows:
The branch o ce router runs a LAN subnet 192.168.1.0/24 and the HQ router runs a LAN subnet 192.168.3.0, the public IP of the branch o ce
router is 1.1.1.1 and the IP of the HQ router is 2.2.2.2.
Con guration of the Branch o ce router:
○
Go under VPN VPN Clients
→
IPSec VPN
○
Phase 1
○
then click on to add a VPN Client.
IPSec Tunnel
Add VPN Client – IPSec
Add VPN Client – Phase 1