Create your own Nintendo Zone for StreetPass relays

The latest 3DS update allows for new functionality to be experienced at Nintendo Zones. By visiting certain locations, you can receive StreetPass communications from other system owners who were there previously.

However, some people may not be interested in visiting places such as McDonalds simply to be involved with StreetPass. There is, fortunately, a workaround.

Here are the steps:

1. Change your Wi-Fi router/stick/phone MAC address to a shared one.
2. Change your router/stick/phone SSID to attwifi (or any other “good” Nintendo Zone ID)
3. Close your 3DS in sleep mode.

Seems pretty simple! Plenty of 3DS users have reported that this method works well enough, so it should come in handy.

Source