[CentOS] Pix Firewall Monitoring Software on Linux

hey friends,

I am looking for a free open source software (web based or application) through which I can monitor the Pix Firewall. What it should show Interface status or traffic , VPN Connectivity status, CPU Status, Memory Status etc. I am also running DHCP server on Pix Firewall (due to some reasons) If it can monitor that also means showing how many IPAddresses has been assigned, to whom, what is the lease time etc. then it will be very good.

I know about cacti but for VPN Connectivity status one has to use telnet which I don't want to use and I don't know about monitoring DHCP server through it. Is there any other tool through which I can monitor Pix Firewaall ?

I am using Centos4.0

Thanks & Regards

Ankush Grover