For detailed bandwidth tracking there is a great plugin ip_conntrack available on **dd-wrt.com** forum.
Step 1 - upload plugin to DD-WRT
The easiest way how to upload any content to DD-WRT is build-it ProFTPD server. To enable it, open **Services ->** **NAS** and check **ProFTPD **server.
[caption id="" align="aligncenter" width="497"] DD-WRT FTP[/caption]
Now you can upload any content to your router by any FTP client.
Step 2 - connect to router by telnet
My DD-WRT firmware has some problems with SSH so it isn't possible to use it. It's not a big deal because we can connect to router by telnet (in Win7 it's necessary to install it Add or Remove program->Turn Windows Features -> Telnet client). Run **Telnet** from start menu and type (use IP address based on your own configuration)
[caption id="" align="aligncenter" width="417"] Telnet[/caption]
Step 3 - Install ip_conntrack plugin
Now it's necessary to execute all steps described in ip_conntrack post.
Step 4 - Configure automatic execution of script
Not tested, more info on plugin page