I have taken two Cisco 1721 with Shdsl cards in order to join the nets between two buildings through a brace of threads. It seems that it is not possible to shape them as Bridge. Practically I would have by force to reshape also the PC declaring them like Gateway. Time makes has used other Marches of SHDSL and was simply enough to shape them Bridge, one Server and the other Client. The PC did not have to touch them not at all. Someone puo' to help me? Thanks.