Netflix (and other streaming apps) are only available on the US Xbox 360 store, and so to get access to those you will need to create a US Xbox Live account.
The DNS settings listedon the Overview page can be input to your router, for the entire network, or directly to your Xbox 360 through Settings > Network > Wired/Wireless Connection > Configure Network > DNS Server. You won’t need to change the DNS settings on your Xbox 360 if you have already done so via your router.
1 Set up a US Xbox 360 Account
Create a free Xbox Live account and input a fake North American address with a valid ZIP code. It is advisable to use a real US address, look up the address of a hotel or shopping center. It does not require an Xbox Live Gold account.
2 Download the Netflix App
Download the Netflix and Hulu Plus apps using your new US account.
3 Change your Locale
In System Settings, change your system locale to “United States”.
4 Restart your Xbox 360
This will solve any lingering issues from the new DNS or switch to US account.
5 Launch the Netflix App
Launch Netflix and sign in with your account to enjoy high-definition videos (depending on your bandwidth) from the comfort of your couch through Xbox 360!