what your provider ask as setting ? MAC, auth?
Not sure as Whirlpool says no need but in trial tried username copy Optus Modem VDSL MAC Address but if in bridge mode this is not able and can I insert at the first setup page in network settings?
I don't think you can spoof the MAC address automagically with SME (at least not right now). I think you could potentially set it manually, but it will get overwritten on "ip up". It might need a special bit of templating down in /etc/sysconfig somewhere.
Probably the easiest thing to do is to try connecting using a desktop/laptop and finding settings that work.
Does it need a specific MAC address (has it been locked to the MAC of the ISP supplied router?)
Does it need a user/password?
Get the settings from the ISP router first and make sure that connects.
Then try a desktop where you can test the settings.
After that we can try and replicate them on SME.
pair shape
"pear shaped" - but I understand the sentiment