![what is router on a stick cisco what is router on a stick cisco](https://www.telecomworld101.com/images/Network/RoaS1.jpg)
This is FAR more scalable and would allow me to configure more than 2 VLAN’s on a single interface Configure Sub-interfaces on the router and associate each sub-interface to each VLAN. So far this is not looking like a very scalable solution.Ģ/ I can plug my router in my switch with a single cable. What if I had more than 2 VLAN’s? What if I had 200 VLAN’s (Not an uncommon scenario)? Not only would this mean I need a router with 200 interfaces, but it would also mean that my switch would need 200 interfaces.
#What is router on a stick cisco free
This is not a major issue, and this is something that could easily be configured, however it will require a router with 2 interfaces free for me to use. Configure 1 port on the router to be in subnet 10.0.10.0/24 and in VLAN 10, and configure a second port to be in subnet 10.0.20.0/24 and associate that port to VLAN 20.
![what is router on a stick cisco what is router on a stick cisco](https://www.networkstraining.com/images/Cisco-Layer3-Switch-Routing.jpg)
Furthermore the switch I have used in the example below is a layer 2 switch so there is no routing functionality available so I am forced to use a router.ġ/ Plug my router into my switch with 2 cables. In order to have traffic from one subnet communicate with the other routing would have to take place. This can be done either by a multi-layer switch which will have routing capabilities, or the packets can be routed by a router (Router on a Stick)Īs an example, I have 2 VLANS, VLAN 10 and VLAN 20 which have subnets 10.0.10.0/24 and 10.0.20.0/24 respectively. In order for 2 VLANS to be able to communicate, the traffic must be routed.