Jupiter is a Cerowrt router configured to act as a gateway to the testlab.
It has a real internet connection, has ipv6 support, provides a subnet to 3 other routers, and has a USB stick mounted that serves as a local cache of the release images and package database. The USB stick can also be used to store long-running measurements of traffic.
QoS is disabled at present. It is also the default gw of the client routers
Yes, it has a visible to the world webserver, which will one day be used to document how to use the testlab.