Problem with connecting vias to ground plane

[kumar@9600]

I am designing a double layered board (Top and Bottom layers). All the components, SMD & leaded were placed on the top layer and wanted a solid ground plane on the bottom side. i placed vias for smd components with ground net names, but when i create power plane on the bottom side; its not connecting with vias routed to ground nets in the design.

Is this possible?

Ultiboard version i am using is 10.1...

Kindly help in this regard..

[stressed_user]

Can you add a screenshot of your problem on the PCB?

[cliff1001]

a predefined "property" of a via  is "assumed net". you can change this by left clicking on the via.  You would want to  set this assumed net to 0 (ground) 

[Buechsenschuetz]

SMD pads are on one copper layer only, so there is no part of an SMD pad on the bottom side (as it is "by nature" with through-hole pads). AFAIK you have to place a via next to the SMD pad in question and connect the via to the net required (GND in this case). Usually SMD pads are too small to place a via "inside" the pad. I have seen it on many boards (and maybe designed some myself) and I do not remember having seen a via directly in the SMD pad, the vias were always placed near the pad.