[rbak-nsp] understand PPPoE connection ion SE800

[Nono J]

Hello

I have a bizzar network configuration on my PC using PPPoE with a SE800.
I configured the Radius to send on access-accept 
famed-ip-address=255.255.255.254. but on PC PPPoE session, the GW (shown 
on ipconfig) is 0.0.0.0 with a netmask 255.255.255.255. But even this 
curious GW, the PPPoE session work well, and the PC can find its good GW 
on SE800.

IP: <IP address provided by BRAS>
netmask: 255.255.255.255
GW: 0.0.0.0

any idea on uderstanding, and perhaps  changing to classical example as 
following ?
IP: <IP address provided by BRAS>
netmask: 255.255.255.255
GW: <IP address provided by BRAS>

Thanks

James