6 Ethernet interfaces on board, how to?

[DangerD]

I have Chinese motherboard N70SL which has 6x 1000Mbps ports.
1st one is configured as WAN, works fine
Another 5 i want to configure as LAN, can i configure them as one ip as on regular router or i should assign them ip and configure dhcp and set for every lan interface with different ip ranges?

[kiokoman]

create 5 interface without setting IPs then you can make a bridge of all that interfaces and set the ip on the bridge only

[viktor_g]

Bridging and Interfaces:
https://docs.netgate.com/pfsense/en/latest/book/bridging/bridging-and-interfaces.html

[chpalmer]

Just remember doing this can be a bit harder on the resources of the box. Especially if you have allot of LAN to LAN traffic..