RouterBoard 450G

i would like to create a big network under one router.
1st ethernet port will be use for internet through Wimax out door Anternaa.
2nd ethernet port goes to my 1 Lan and also want to limit the bandwidth on it. (internet thorugh ethernet 1)
3rd ethernet goes to my 2nd lan and also want to limit the badwidth on it.(internet thorugh ethernet 1)
5th ehternet port goes to my linsksys access ppoint through which i will allow wifi users to access my internet without accessing the ethernet 2 and 3 rd port.

please help me configure these option i will be great full..

Dear Nadir

Please post you network layout here and how you want to connect each device with it.
We will help you to do so.

regards

check the possible.
Networkk.jpg