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mediumswitching~45 min

VLAN 20 can't reach VLAN 10

A layer-3 switch should route between VLAN 10 and VLAN 20 using SVIs, but inter-VLAN routing is half-built. Finish it so the two VLANs can talk.

Scenario

A layer-3 ("multilayer") switch hosts two user VLANs and is meant to route between them with SVIs (interface Vlan<id>). Right now only VLAN 10 has a gateway and routing isn't enabled, so VLAN 10 and VLAN 20 can't reach each other.

Topology

  • Ethernet1: a host in VLAN 10, gateway 10.0.10.1
  • Ethernet2: a host in VLAN 20, gateway 10.0.20.1

Your job

In sw1/sw1.conf:

  • Enable layer-3 routing on the switch.
  • Add the missing SVI for VLAN 20, giving it the gateway address VLAN 20's host already points at.

What "done" looks like

Layer-3 routing is on, both VLAN 10 and VLAN 20 have SVI gateways, and the host ports are in their VLANs.

Graded on the switch configuration's shape.

Teaches: inter-VLAN routing on a layer-3 switch. An SVI per VLAN is the gateway, and routing has to be enabled for the switch to forward between them.

What gets checked

Your solution is verified against each of these:

  • Layer-3 routing is enabled on the switch
  • VLAN 10 has an SVI gateway (10.0.10.1/24)
  • VLAN 20 has an SVI gateway (10.0.20.1/24)
  • The host ports are in their VLANs

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