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Does Cisco 1921 router support VLANS ?

Guest Kellywood

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There are 2 ways that the 1921 can support vlans.


If you purchase a 4 or 8 port switch module (EHWIC-4ESG or EHWIC-D-8ESG) for the 1921, the switch module can support 16 vlans.


The other option is set up one of the routed ports with sub-interfaces (one sub-interface per vlan) and attach the port to a trunk port on a switch.

You can create up to 1200 sub-interfaces on the 1900 (although I doubt you'd need that many without maxing the performance specs of the router)

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