The example network below shows what the second and third option looks like. Use a router with a VLAN trunk connected to a LAN switch.Use a router, with one router LAN interface and cable connected to the switch for each and every VLAN (typically not used).There are three options available for connecting a router to each subnet on a VLAN: The hosts inside each subnet can then use the router IP addresses as their default gateways, respectively.
Each VLAN is a separate subnet and in order to route IP packets in and out of those VLANs – or more accurately, the subnets that sit on each of those VLANs – some router needs to have an IP address in each subnet and have a connected route for each of those subnets. Router on a stick is a network configuration used to allow the routing of traffic between different VLANs.Īlmost all enterprise networks use VLANs which stands for Virtual Local Area Network.
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