Set up Firewall as Switch

Kean

Since im always bored i tried to set up a USG40W as a Switch and i cant get it to work.
I disabled Policy Control since i only want it to be a Switch and not a Firewall.
My DHCP Server has an IP of 192.168.69.1(255.255.255.0) and it will give the WAN Port on the USG a IP(192.168.69.17) but it will not give an IP to any Clients connected to P2. I have set up a DHCP Relay on LAN1 with the 192.168.69.1 IP but the Clients do not get a IP.
The LAN1 interface is configured with 192.168.69.2 and DHCP Relay. LAN1 is set to all possible Ports.
If i give the Client a static IP and try to ping 192.168.69.17 it works but i cant ping 192.168.69.1.

Are there any extra settings i have to set?

PeterUK

You will not be able change the WAN1 but if you do this the four ports will run as a switch but you will not be able to firewall or you could bridge LAN1,LAN2, OPT and DMZ if you don't change port role.

Techex_1

https://community.zyxel.com/en/discussion/comment/40314#Comment_40314

I changed these settings, but the Ports still are in different Networks. Is there a way to put all Ports into the same Network? Entering IPs manually for each port only gives "duplicate IP" errors. DHCP cannot be set to give IP addresses in the same range on all Interfaces.