I have a development environment set up where I have a separate loopback address for multiple websites.

For example, I have the following:

```
127.0.0.1 www.example.com
127.0.0.2 foo.example.com
127.0.0.3 bar.example.com
127.0.0.4 waffles.example.com

```

I'd like an equivalent solution for IPv6.

I already know that you can use ::1 as a loopback address, but ::2, ::3, etc don't seem to work.

Are there any other loopback addresses in IPv6? Is there a way to have multiple unique loopback addresses?