This repo helps with cross-compiling collectd for ASUSWRT routers.

1. You need to setup the ASUSWRT toolchains

2. Use this build.sh script to download, build and package collectd:

   CROSS_COMPILE=arm-brcm-linux-uclibcgnueabi ./build.sh
   

   You can specify the toolchain to use with the CROSS_COMPILE environment variable.

You should have a writable partition mounted at /opt. This is usually a JFFS partition on flash, or an external USB drive that is plugged into the router.

To install collectd, download the tar.gz file onto your router (most likely to /tmp), then unpack into /opt:

$ cd /opt
$ tar xzvf /tmp/collectd-$ver.tar.gz

You need to edit the collectd.conf configuration file.

The collectd service should start automatically on boot.

The inclusion of the brcm_wl plugin enables collection of detailed statistics of wireless clients, such as association time, idle time, TX/RX bytes and packets, RSSI levels, etc.

This plugin only works on (certain?) Broadcom wireless chipsets, because it communicates directly with the driver to retrieve the information.

I have tested it to work on the ASUS RT-AC68U and the D-Link DIR-868L.