after setting up my secure snmp network i needed something to parse the data with. MRTG is too basic so i opted for rrg. I used the software package called cacti. It's very nice.
i've been working on setting up a system of bridging ip-less packt filters with ipfilter (for logging, filtering, accounting, proxying, NAT) and ipfw (for bandwidth limiting). I also wanted to set up a private mointoring network with a thrid NIC in each box. Even though this link was privat I still wanted to keep everything on the wire encrypted.