MikroTik

Hi guys.
Maybe be this is a stupid question but here is my scenario.

I have a lan with 192.168.1.0 gateway 192.168.1.250
i wanted to add a sublan than connecting through a mikrotik with my lan can have internet access.

The Mikrotik IP (fake wan) address 192.168.1.240
The internal MK IP 192.168.2.1

It seems i can't find the way to configure the MK. Can anyone help me pls
I have configured the IPs and MK has now internet through my LAN but all the clients that i connect through it (with ips 192.168.2.0...) can't access the internet.

Thanks in advance

better u set like this :

1.define ip mikrotik(as ip gateway ofcourse, ex:1.250)
2.define ip mikrotik(as ip gateway ofcourse, ex:2.250, for net 2)

two of all above, just add ip address with the same interface, ex: interface local
ex:
ip address add addr=192.168.1.250/24 interface=local // for gateway 1
ip address add addr=192.168.2.250/24 interface=local // for gateway 2

3.after that, just add the nat - masquarade for those net (net 1&2)