okey, everyone will configure the bba-groups in the right way to make the task working.For me the tricky bit was that I used the wrong identifier for this task and the static host map in the dhcp pool didn't work. If yo don't configure the right client identifier it want work.
so, what I did was to start the debug of the pppoe session and get the identifier from the dump in the log.
*Mar 1 00:13:42.243: Retry count: 1 Client-ID: cisco-c203.03d1.0000-Di1
*Mar 1 00:13:42.243: Client-ID hex dump: 636973636F2D633230332E303364312E
*Mar 1 00:13:42.247: 303030302D446931
we should keep in mind that we need to add 00 of front of the first two digits for the client-id and it will looks like 6369.xxxx.xxxx.xxxx.xxxx
