[quote=@Lord Wraith]
<Snipped quote by Forsythe>

This reminds me, in Star Trek you generally can't teleport through shields (they bend these rules as the plot requires though), is this generally the same across the board in other universes with both shields and teleporters?
[/quote]

The Asgard themselves have no such rules on shields but Tau'ri ships are generally held to this.