locations.ini for mobile agents on private instance

[jsheth]

Thanks Patrick for the reply!

I just want to create a relay to webpagetest.org with API key I have received from you.
When I connect using following:

[WPT_Banglore]
browser=Chrome
label="Banglore- Vodafone 3G"
relayServer="http://www.webpagetest.org/"
relayKey=A.758dxxxxab62d4
relayLocation=Bangalore_Headspin

It says: The testing completed but failed.
Failed to configure IPFW/dummynet. Is it installed?

I'm not sure if locations.ini as above is correct?
Please help!

Thanks,
JAy