As far as I can see, the Traffic Graph only shows IP4 traffic.
I have IPv6 enabled on my BT line now, and when I look at Online Status, IP4 shows (eg.) 400MB of RX traffic since last reboot, this matches what I can see in the Traffic Graph, but when I look at the IPv6 tab in the Online Status, there's (another ?) 1GB or so of RX traffic.
Just think it would be a "nice to have" since DrayTek are quite keen on pushing their IPv6 capabilities.
Happy New Year BTW
Simon

Happy New Year too - excellent dedication to the cause posting at 2am!!

You are right about the Traffic Graph & Data Flow Monitor functions - both only seem to show IPv4 traffic. On the other hand the SNMP hook for VDSL BW monitoring does report the total bandwidth figure correctly - but at guess this is counted at a different part of the system where it doesn't care about IPv4/6 packets any more and is simply counting bytes as they disappear into the VDSL modem.

Chris