Need to look at TG582n throughput speed

[#1]

Is this possible via telnet, ie like iftop would show whats going on ?
I'm using DD-WRT Bandwidth  monitor to look at throughput for the WiFi which is a seperate box though for managing the wifi,
I want to look at what is passing through the TG582n though, is there any other way i might be able to get this info, could i pop the router with DD-WRT Before it, I'm guessing this wont show any data because it is ppoe.

[#2]

Hi there,
I've just bounced your question off our products team and we've found out the following between us:
We don't think you'd be able to achieve this via Telnet but there is a way of using wireshark to do this but it would involve using extra kit.
I.e you could turn off DHCP on the TG582n and use that as an access point and connect that to another router/modem with a hub inbetween, that hub would need a device running wireshark connected to it.

[#3]

Cheers Adam, please pass on thanks to the team for me, I thought i would need something capable of mirroring the port though for wire shark to listen. I don't think my old Dlink DIR615 is upto the job of taking the place of the TG582n  works good for WiFi though 

[#4]

I sure will, thanks.