Technically you only need 1 interface when using VLANs. Basically any device with a CPU and NIC can be a router.
Comment on US bans any new consumer-grade routers not made in America
Steve@communick.news 2 days agoI think you actually need 3.
Otherwise there is no real “routing” just “in here, out there” and vice versa.
MangoPenguin@lemmy.blahaj.zone 2 days ago
LodeMike@lemmy.today 2 days ago
It’s a router if it operates on layer 3. Most WiFi routers only use two interfaces (ISP side and WiFi) and yet they are routers. They also provide a later 3 firewall.
Steve@communick.news 2 days ago
But several devices can connect to the WiFi side.
Counts as multiple endpoint devices.LodeMike@lemmy.today 2 days ago
Same with Ethernet
FrederikNJS@piefed.zip 2 days ago
The “routing” can still refer to routing to devices attached via a switch. So no need for a third port to qualify as a router.
Steve@communick.news 2 days ago
That’s true. I forgot about a down network switch.