Can a device be part of multiple VLANs?
Devices in different VLANs cannot communicate when only using layer 2 switches. Layer 2 devices only inspect the destination MAC (media access control) addresses of Ethernet frames. In other words, a layer 2 switch allows devices in the same VLAN or subnet to communicate.
How do VLANs connect to the Internet?
The devices in each VLAN access the internet through the internet gateway which is connected in VLAN 10. In this example, the internet gateway is not configured to be VLAN aware. The switch routes traffic between VLANs, from the devices in VLANs 10, 20 & 30 to the internet gateway and back.
How to connect two LANs to the Internet?
Add both routes (subnets) to the router so that they can both access the internet. then you can setup VLANs on the switch as you see fit to separate the subnets. Keep in mind that you need a layer3 device (router) to let the layer2 VLANs communicate. Was this post helpful? Thanks for your feedback! This person is a verified professional.
Do you need a router for a VLAN?
Firstly: VLANs (Virtual LAN) only serve to separate traffic. It’s as if you put 2 physically distinct switches in there. In order for traffic to cross VLANs you’ll typically need a router. (Routers are used to handle cross-subnet traffic, but typically you’ll have a 1-to-1 VLAN-to-Subnet relationship so it all makes sense.)
How to connect two routers to one internet connection?
If I wanted to accomplish this I would connect 1 router to the ISP, then setup the VLAN switch with an uplink port to the router. Add both routes (subnets) to the router so that they can both access the internet. then you can setup VLANs on the switch as you see fit to separate the subnets.
Do you need a router to use a subnet?
(Routers are used to handle cross-subnet traffic, but typically you’ll have a 1-to-1 VLAN-to-Subnet relationship so it all makes sense.) You’ll need a router to do this.