Cisco ASA at the Main Office
                                      |     |
                                      |     |
                                      | VPN |
                                      |     |
                                      |     |
Internet ---- Router1 (128.1.1.1) ---- Router2 (ip 128.1.1.2 gw = 128.1.1.1)
                                        |
                                        |
                                        |---- client 1 (ip 128.1.1.10 gw = 128.1.1.1)
                                        |---- client 2 (ip 128.1.1.11 gw = 128.1.1.1)