Wirless segment connections

Thanks in advance,

This is now my network is setup:

1. Cable modem access connected to a VoIP ATA
2. Home phone system connected to ATA and Linksys 8 port switch is connection as well.
3. Linksys provides connectivity to all wire system (3 in all)
4. Linksys also provides connectivity for AirPort wireless g router
5. Wireless g router has 3 laptops and one IMAC that connects

All wired systems function OK, all wireless systems functions OK, with the exception of having to on occasions recycle the wireless router so that one the laptops can rejoin the network. (this has been an intermitted problem) Any suggestion would helpful. Note that wireless is dhcp with mac filtering turn on.

The VoIP ATA is NATTED and it's IP is 192.168.2.X and act ask the gateway for all systems.
The AirPort wireless router is dhcp and its IP is 192.168.11.x providing appropriate IPs for all wireless devices.

I would like to monitor the entire network from my IMAC; How can this be done?