It uses a proxy. JSLinux emulates a network device and sends ethernet frames to a proxy via websockets. The proxy sends these frames to a Linux TAP device. The

It uses a proxy. JSLinux emulates a network device and sends ethernet frames to a proxy via websockets. The proxy sends these frames to a Linux TAP device. The rest is a decent firewall configuration. You might even be able to connect to another emulated JSLinux machine if you know that IP address. More information here: http://www.benjamincburns.com/2013/11/10/jor1k-ethmac-support.html http://www.benjamincburns.com/2013/11/10/jor1k-ethmac-suppor...