Quoting Fran via tor-relays (2022-02-07 19:50:34)
So I thought of trying to run a bride and a snowflakeproxy on one VM with individual IP addressing in v4 and v6 for each by adding secondary addresses to to the WAN interface. But after compiling the go binary I fail to find out how to tell snowflake which IP to bind to/use.
The snowflake proxy doesn't bind to any address, is a bit different. It acts as a webrtc client, it initiates the connection to the broker to ask for snowflake clients. That means that the visible IP address of the snowflake proxy will be your default public address.