Yes, using a VPN in Australia for privacy or to access region-specific content is legal — the VPN itself isn't the issue, only what you'd do with it that's separately illegal (which is rare for ordinary use). Common student setups: a commercial VPN app (simple, per-device); or a router-level VPN configuration, which covers every device on the network automatically without installing anything per-device. We can help configure the router-level option.

可以，在澳洲用VPN保护隐私或访问区域内容是合法的——VPN本身不违法，除非你拿它去做另外本身就违法的事(普通使用极少涉及)。留学生常见做法：装一个商业VPN应用(简单，按设备装)；或者在路由器层面配置VPN，这样家里所有设备自动生效，不用每台设备单独装。路由器层面的配置我们可以帮忙弄。