When the trunk is successfully established, devices connected Interface to a trunk port, allowing a trunk to be established between To correct this problem, issue the switchport mode trunk interfaceĬonfiguration mode command on switch port F0/5 on S1. Subinterfaces is unable to send or receive VLAN-tagged traffic. Is unable to route between VLANs because each of its configured However, interface F0/5 on switch S1 is not configured as a trunkĪnd is left in the default VLAN for the port. The Figure 2 topology shows the router-on-a-stick routing Router R1 interface G0/0, which allows it to access the other VLANs Switch port is configured for the correct VLAN, PC1 can communicate with To correct this problem, execute the switchport access vlan 10 interfaceĬonfiguration mode command on switch port F0/4 on switch S1. Than PC1, they are unable to communicate. That connects to router R1 interface G0/0 has not been configured and Indicated by their IP address assignment. Interface G0/0 are configured to be on the same logical subnet, as The router interface therefore, those devices are unable to send dataĪs shown in the Figure 1 topology, PC1 and router R1 If a switch port is not configuredįor the correct VLAN, devices configured on that VLAN cannot connect to When using the legacy routing model for inter-VLAN routing,Įnsure that the switch ports that connect to the router interfaces areĬonfigured with the correct VLANs. There are several common switch misconfigurations that can arise when configuring routing between multiple VLANs.
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