I'm not sure that it does. Have you thought about tbbmeter which may give you usage figures?
As a possibility
Enable telnet sessions on your DG834G by clicking on enable telnet
telnet to your router by entering the command
from a command prompt.
Enter the following command (it displays the contents of a file)
Towards the end of the file will be lines such as
Good Cell Cnt: 161790
Idle Cell Cnt: 4571774
Good Cell Cnt: 4677057
Idle Cell Cnt: 28974921
Bad Hec Cell Cnt: 0
Overflow Dropped Cell Cnt: 0
The good cell counts (up and downstream) may
be the number of data packets sent and received. Multiply these by 48 to get the number of bytes of data sent and received.
N.B. these counts are reset when the router is restarted.
eta: corrected cell payload to 48 bytes.
Edited by john2007 (Tue 15-Feb-11 10:00:09)