A business router is the device at the edge of a store or venue network that connects it to the internet. It directs traffic between the internal network and the outside world and typically includes firewall, VPN and traffic-management features.
It receives the internet service from the NBN connection box or a 4G/5G modem and hands out internal addresses to devices through DHCP. Business models can run dual connections, switching automatically if the primary line fails, and apply rules that give POS traffic priority over guest browsing.
Retailers use them to keep payment terminals and cloud POS reliable, to link head office and stores through VPN or SD-WAN, and to manage many sites remotely. Hospitality venues rely on them to keep ordering and payments stable at busy times. Multi-site groups often choose routers that can be managed from a central dashboard, so settings can be checked and changed without visiting each store.
The free modem supplied with a consumer plan is often not enough. Check the router's supported speeds, the number of connections it can handle, firewall features, remote management, firmware update support and warranty. Leaving default passwords and unpatched firmware is a common cause of compromise.
Because everything depends on it, it is worth choosing carefully and keeping its configuration documented and backed up.