Inter-Vlan Routing
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Inter-Vlan Routing



Inter-Vlan with 2950T24 (Router on a Stick)

Inter-Vlan with 2950T24 (Router on a Stick)



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    Inter-Vlan Routing Inter-Vlan Routing Document Transcript

    • Lab 2 :Inter-Vlan Routing Sub-interfaces: A sub-interface is used to connect an interface to a specific vlan in case of the creation of a trunk. For example, if I connect a network that include 4 VLANs and inter-vlan communication is required, 4 sub-interfaces are required, one per VLAN. More than 4 billions sub-interfaces can be created. The number that follows the dot represents the VLAN ID. To create a sub-interface, use the same command: int (in global config mode) To Assign the encapsulation before assigning an IP address: encapsulation dot1q 1 ( native : if supported) ip address X.X.X.X Lab: List of equipment: (1) Cisco 2xxx 1 router per group (2) Cisco 2950T24 l switch per group Cat5e UTP cables and 2 console cables 1 PC per student Objective: In modern LANs, segments are insulated from broadcast generated from other segments by using VLAN. VLAN implementation follows the sub-net architecture used on a 1-to-1 basis. Once VLANs are implemented, a L3-device is required to allow inter-vlan routing. In this lab, you will create VLANs then populate them with some switchports. The second part of the lab is to implement inter-vlan communication using the provided router. Name IP Default-Gatewa y Port on Sw VLAN PC 1 /27 FA0/2 1 PC2 FA0/3 2 PC3 FA0/4 3 1) Connect all you PCs to the switch. 2) Verify that the IP were as specified in the table. 3) Configure the switch : Switch: 2950T24 a. Remove all the VLANs. Change all the ports to VLAN 1. b. Set up the link between the switch (Fa0/1) to the router (Fa0/0) as a trunk and use a cable to connect them. Fa0/1: Trunk to Router Fa0/0 Mode Trunk Encapsulation dot1q,
    • Allow all VLAN c. Verify the setting on VLAN 1 IP information: LAB2 Vlan1; IP:, Create Vlan 2 then assign Fa0/3 to vlan 2 Create Vlan 3, then assign Fa0/4 to vlan 3 Verify that in VTP status that it is in transparent mode 4) Configure the router: Router: 2xxx d. Fa0/0, no shut, no ip address on it. e. Fa0/0.1: encapsulation dot1q 1 native ( if supported) IP: f. Fa0/0.100: Encapsulation dot1q 100 IP: g. Fa0/0.200: Encapsulation dot1q 200 IP: 5) Test the connectivity between the PCs. Useful Commands: Router: show vlan, show int On Switch: show vlan, show vtp status, show hint fax/x
    • LAB2