Modified from https://code.google.com/p/wrtbwmon/.

• "User" column has mouseover text containing MAC and IP addresses
• "First seen" and "Total" columns in usage table
• Monitoring of locally generated traffic on a per-interface basis
• remove function to delete iptables rules

wrtbwmon was designed to track bandwidth consumption on home routers. It accomplishes this with iptables rules, which means you don't need to run an extra process just to track bandwidth. wrtbwmon conveniently tracks bandwidth consumption on a per-IP address basis, so you can easily determine which user/device is the culprit.

Here is an example usage table:

• Install: Download and install ipk from the releases page
• Setup: wrtbwmon.sh setup
• Update table: wrtbwmon.sh update /tmp/usage.db (you can place the data table anywhere)
• Create html page: wrtbwmon.sh publish /tmp/usage.db /tmp/usage.htm

• Install ipk
  • e.g.,:
    • cd /tmp
    • HTTPS: curl -LO https://github.com/pyrovski/wrtbwmon/releases/download/0.3/wrtbwmon_0.3_all.ipk
    • HTTP: you're on your own :( Busybox wget usually doesn't have SSL support.
    • OpenWrt: opkg install /tmp/wrtbwmon_0.3_all.ipk
• Or, if you don't want to use an ipk:
  • cd /tmp
  • HTTPS: curl -L https://github.com/pyrovski/wrtbwmon/archive/0.3.tar.gz | tar xvz
  • cd wrtbwmon-0.3
  • ./install.sh wrtbwmon.sh readDB.awk usage.htm1 usage.htm2 wrtbwmon
    • Currently, this depends on the install program. OpenWrt chose to provide this as the "coreutils-install" package.
• Or, if you have make, just make install as root after cloning/unpacking.

• wrtbwmon.sh checks a few files for MAC -> name maps:
  • 4th argument to wrtbwmon.sh publish <DB> <userDB>
  • /tmp/dhcp.leases
  • /tmp/dnsmasq.conf
  • /etc/dnsmasq.conf
  • /etc/hosts
• If all of the above do not yield a match, the script will optionally perform a reverse DNS lookup directed at the DNS server specified in the DNS variable. If DNS is blank or unset, the script will not perform such lookups.

• Add the following to root's crontab:

    # adapt PATH to your needs
    PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
  
    * * * * * <script location> update /tmp/usage.db
    0 * * * * <script location> publish /tmp/usage.db /tmp/usage.htm
  

• Enable web serving of the generated page (optional)

  • This varies by environment, but for lighttpd:
    • ln -s /tmp/usage.htm /var/www/html/

• wrtbwmon.sh remove