HP MSM Access Points and Cacti

I love graphs. Just ask my wife. Any sort of metric I can get my hands on, I try to graph and display visually.

One of my favorite tools for graphing data is Cacti. As such, if it can be queried via SNMP, I want it on Cacti.

I have an HP MSM430 access point that I use in our home. It presents quite a bit of data via SNMP. I’ve developed some Cacti templates that can be used to graph average SNR for a station (a station is an SSID on an individual radio), as well as the number of users connected to a station.

Find it on github: https://github.com/shouptech/hp-msmAP-cacti

avg-snr num-users

Comcast IPv6 with Ubiquiti EdgeRouter

With the latest release of firmware (1.6) for Ubiquiti EdgeRouter devices, you can now use DHCPv6-PD with only modifying the device config.

It works with Comcast’s IPv6. Here’s my config to get you going:


Project Steelwall – pfSense on a Steelhead

I acquired for a reasonable price an old Riverbed Steelhead SHA-250. These are no longer supported by Riverbed, so they can be fairly inexpensive second hand.

The Steelheads all seem to be x86 based, which makes them a great appliance for pfSense. With just a little bit of work, it is easy to turn one of these appliances into a great firewall.

The SHA-250 I have has the following specs:

  • Intel Celeron-M 1.66GHz Processor
  • 1GB DDR2 RAM
  • 120GB SATA hard drive
  • 2GB flash drive, connected to an internal USB header
  • 4x Intel Gigabit Ethernet ports (*bypass pair not working in pfSense)
  • 2x External USB 2.0 ports
  • 1x DB-9 Serial Port for console

Since this will be used for my firewall at home, I removed the hard drive to conserve power and installed pfSense on the internal flash drive. Also, I can only get two of the four network ports working. The bypass pair seem to be missing some software component for them to work.

Photos can be found at the bottom of the post.

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