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The router-on-a-stick method requires you to create a subinterface for each VLAN to be routed.Ī subinterface is created using the interface interface_id.subinterface_id global configuration mode command. *Mar 1 00:23:52.137: %LINEPROTO-5-UPDOWN: Line protocol on InterfaceįastEthernet0/1, changed state to up R1 Subinterface Configuration (4.2.4) Example 4-5 S2 Configuration S2(config)# vlan 10 The configuration for S2 is similar to S1, as shown in Example 4-5. S2 VLAN and Trunking Configuration (4.2.3) *Mar 1 00:23:44.511: %LINEPROTO-5-UPDOWN: Line protocol on Interface
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*Mar 1 00:23:43.093: %LINEPROTO-5-UPDOWN: Line protocol on Interface Example 4-4 Configure Trunking Ports S1(config)# interface fa0/1 Finally, ports Fa0/1 connecting to S2 and Fa05 connecting to R1 are configured as trunk ports, as shown in Example 4-4. Example 4-3 Configure Access Ports S1(config)# interface fa0/6 Assume PC1 has been configured with the correct IP address and default gateway. Next, port Fa0/6 connecting to PC1 is configured as an access port in VLAN 10, as shown in Example 4-3. Example 4-2 Create the Management Interface S1(config)# interface vlan 99 Next, the management interface is created on VLAN 99 along with the default gateway of R1, as shown in Example 4-2. Example 4-1 Create and Name VLANs S1(config)# vlan 10 VLANs are created only after you exit out of VLAN subconfiguration mode. First, the VLANs are created and named, as shown in Example 4-1.