Configuring Inter-VLAN Routing. Legacy inter-VLAN routing (or per-interface inter- VLAN routing) requires multiple physical interfaces between the router and the switch. The switch interfaces are set to access mode and assigned one VLAN. The router needs nothing special to route the VLAN traffic other than addressing for the VLAN's subnet. Because this is legacy inter-VLAN routing, we will not review it any further. You just need to be aware of what it is and how it is configured. An alternative in larger networks is to use VLAN trunking and subinterfaces. VLAN trunking allows a single physical router interface to route traffic for multiple VLANS. This technique is termed router on a stick and uses virtual subinterfaces on the router to overcome the hardware limitations based on physical router interfaces. a. List the commands including command syntax and prompt to configure a router for router-on-a-stick inter-VLAN routing. b. List the commands including syntax and prompt to configure a switch to support inter-VLAN routing. c. What commands cannot be used on the router? Why?

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Configuring Inter-VLAN Routing. Legacy inter-VLAN routing (or per-interface inter-
VLAN routing) requires multiple physical interfaces between the router and the switch.
The switch interfaces are set to access mode and assigned one VLAN. The router needs
nothing special to route the VLAN traffic other than addressing for the VLAN's subnet.
Because this is legacy inter-VLAN routing, we will not review it any further. You just need
to be aware of what it is and how it is configured.
An alternative in larger networks is to use VLAN trunking and subinterfaces. VLAN
trunking allows a single physical router interface to route traffic for multiple VLANS. This
technique is termed router on a stick and uses virtual subinterfaces on the router to
overcome the hardware limitations based on physical router interfaces.
a. List the commands including command syntax and prompt to configure a router for
router-on-a-stick inter-VLAN routing.
b. List the commands including syntax and prompt to configure a switch to support
inter-VLAN routing.
c. What commands cannot be used on the router? Why?
Transcribed Image Text:Configuring Inter-VLAN Routing. Legacy inter-VLAN routing (or per-interface inter- VLAN routing) requires multiple physical interfaces between the router and the switch. The switch interfaces are set to access mode and assigned one VLAN. The router needs nothing special to route the VLAN traffic other than addressing for the VLAN's subnet. Because this is legacy inter-VLAN routing, we will not review it any further. You just need to be aware of what it is and how it is configured. An alternative in larger networks is to use VLAN trunking and subinterfaces. VLAN trunking allows a single physical router interface to route traffic for multiple VLANS. This technique is termed router on a stick and uses virtual subinterfaces on the router to overcome the hardware limitations based on physical router interfaces. a. List the commands including command syntax and prompt to configure a router for router-on-a-stick inter-VLAN routing. b. List the commands including syntax and prompt to configure a switch to support inter-VLAN routing. c. What commands cannot be used on the router? Why?
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