About the test setup

Here you will find an overview of the interface assignment in the individual routers.

Router Interface Description IP address / address range
Routers in the xth branch office en1-0 LAN connection in the branch office 10.x.0.1/24
  en1-0 DHCP server for access points and WLAN devices in the branch office 10.x.0.10 to 10.x.0.254
       
VPN concentrator at head office en1-0 LAN connection at head office 10.0.0.1/24
       
WLAN controller at head office en1-0 IP address of the WLAN controller which must be accessible in the entire VPN 10.0.0.123/24
  en1-0 Default route on the VPN concentrator 10.0.0.1
  en1-0 WLAN controller for all access points in all the branch offices