I've configured vpn for my macbook pro but I can't open filtered sites like youtube, I've set my computer to send all network traffic over vpn.
closed as not a real question by sentinel, Robert S Ciaccio, Dori Oct 28 '10 at 7:17
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Set a new location in network preferences and drag the VPN connection to the top of the list.
When you want to use the VPN connection, change locations to the one with the VPN as the first location and all network traffic will go through it.
Without the VPN as the first option I believe only connections made after the VPN connection is made go through it.