Here we can see leases and the have the ability to monitor interface stats as a whole (you can see the throughput from all of Wireless Arva for instance).
PPPoE users do not come through this box, but they do if they switch to DHCP.
There are some customers on E3 blades that also come through this gateway.
This is almost entirely for wireless customers, though it is still called the DSL GW. A handy use would be to use the MAC on the radio bridge table, and then go to Diagnostics (along the top) -> ARP Table and CTRL-F the last 4 digits of the MAC of the router (AF:33 for example) and grab their IP address that they have been assigned. You can use this address in NTOP to look at the flow and current usage information of a wireless customer.