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I'm using a macbook pro. I've set up the VPN using settings that were on my windows laptop

I can connect to the VPN and see everything on the office network (ping ip addresses, view intranet sites by ip etc...) However- Nothing is accessible on the internet.

Can't even ping google.com

I've tried sending all traffic over VPN / turning that option off... Nothing seems to work!

Does anybody have an answer for this?

EDIT:

Using the default VPN client on OS X, PPTP

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What VPN client are you using? Does the Windows laptop still allow you to get to google.com when connect to the VPN? – Paul Dec 15 '11 at 23:21
Good question -- and if you're using the native VPN client built into OS X, what sort of VPN connection is it? L2TP over IPSec, PPTP, Cisco IPSec? – Doug Harris Dec 15 '11 at 23:53
Sorry- using the default VPN client in OS X, PPTP Have updated question – alex Dec 16 '11 at 11:10
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Try going to google via IP address -- try http://74.125.115.104/

If that works, I'll bet that your VPN blocks whichever name servers you were using without the VPN connection. On windows it probably set you up to use company-managed DNS servers.

If this is the problem, possible solutions:

  • Manually configure your name servers to use the company-managed DNS servers
  • Try different publicly accessible name servers (e.g opendns or google's public DNS or find others using namebench)
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