configure mikrotik in a existing network

Hi, i have my existing network configured statically e.g(192.168.44.0/24) and connected to my cyberoam firewall (192.168.44.x) for authentication to access internet. Now i need to setup wifi in DHCP in the same network mikrotik as the gateway for wifi users only. means, local users are not to access mikrotik they are only need to share locally (192.168.44.x) and connect to my firewall. only wifi users are gwtting dhcp IP are connect through mikrotik box. all the users in the same physical network. how do i configure this setup in mikrotik without blocking my existing local network.

Reg
sbn

put wireless and ethernet port in a bridge. enable dhcp on the bridge. make sure the ip pool of the dhcp server is outside any addresses already in use.

sri icant understand ur reply? could you pls brief

If that doesn’t make sense, you should read the documentation. It explains how to do everything, along with examples:

http://wiki.mikrotik.com/wiki/Manual:TOC