Guys:
Let me first apologize for this time with no answer, I was out of home in a place with no Internet resources.
So, I´ve caught these answers today.
I agree, there is no chance to access the bridge working in a full bridge mode.
Please have in mind that finally mi ISP provider told me that my Ip protocol isn´t (IS NOT) IpoA, it is RFC 1483 with LLC encapsulation.
Looking to my 504 T configuration, there is a option saying that the connection type, may be RFC 1483 routed LLC or RFC 1483 Bridged LLC.
Could any of you tell me what´s the difference between these two modes.
Perhaps ¿does it mean RFC 1483 LLC Bridged is the one that I should select to resolve Ip transactions with my ISP provider at the router and then pass it through SME server?, without being routed to the ISP.
In this case, ¿how SME setup should be carried out?.
I still haven´t the opportunity to run tracert (by the way sorry for my ignorance regarding this , and thank´s to è[nt]e to clarify it for me).
I´ll keep you posted after running tracert.
Looking forward to ear from you.
Oscar