+- RPi -------+
+---+ 192.168.1.2 | +- Laptop ----+
| | WLAN AP +-))) (((-+ WLAN Client |
| | 192.168.3.1 | | 192.168.3.2 |
| +-------------+ +-------------+
+- Router ----+ |
| Firewall | | +- PC#1 ------+
(Internet)---WAN-+ DHCP server +-LAN-+---+ 192.168.1.3 |
| 192.168.1.1 | | +-------------+
+-------------+ |
| +- PC#2 ------+
+---+ 192.168.1.4 |
+-------------+