Routing 4 lan - i need help

[Leonhard]

Hei
im new to pfsense

i have old pc tuned to router

i have D-link 4port server adapter
(something like this http://www.dlink.com/uk/en/support/product/dfe-580tx-4-port-pci-bus-10-100mbps-fast-ethernet-server-adapter)

i need to route networks so that.

1/2 and 3/4 ports must not see ea.
1 and 2 nd are ***.*.101.1 and 101.2
*3rdand 4th are              .102.1 and 102.2
*1rst and 2nd ->6000 port
*3rd and 4th -> 6001 port

sry if my text is confusing im really new to this.