A router on a stick, also known as a one-armed router, [1][2] is a router that has a single physical or logical connection to a network. It is a method of inter- VLAN routing where one router is connected …

What is router-on-a-stick? Router-on-a-stick (ROAS) is a technique to connect a router with a single physical link to a switch and perform IP routing between VLANs.

This section details how to configure router-on-a-stick inter-VLAN routing. You can see in the figure that the router is not in the center of the topology but instead appears to be on a stick near the border, …

Oct 10, 2010 · In this post I will explain how to provide routing between two VLANs on a simple Layer 2 switch using a Cisco router with just one interface. This is called also Router-on-a-stick.

If you are familiar with switches and VLANs you might know that you require a router if you want to communicate between VLANs. In this lesson, I’ll show you how you can use a router connected to a …

When PC-1.1.1.1 tries to ping PC-2.1.1.1, the router will try to resolve PC-2.1.1.1's mac address before forwarding any frame towards it. ARP frames sent from the router, towards PC-2.1.1.1, will have a …

Oct 25, 2021 · Inter VLAN routing is a process in which we make different virtual LANs communicate with each other irrespective of where the VLANs are present (on same switch or different switch). …

Jul 11, 2019 · What is Router on a Stick? ROUTER ON A STICK, also known as a “one-armed router” is a method for running multiple VLANs over a single connection in order to provide inter-VLAN routing …

Aug 22, 2025 · This tutorial explains router-on-stick and how it works on routers. Learn how to configure a router as router-on-stick.

Jun 22, 2025 · Router-on-a-Stick is a setup where one physical router interface handles multiple VLANs using sub-interfaces, enabling inter-VLAN routing.