Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Trunk VLAN Trusting best practices?

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  • 1.  Trunk VLAN Trusting best practices?

    Posted Dec 27, 2017 05:47 PM

    What would be the best practices when considering trusting vlans on a trunk port? 

    My uplink to the router is a trunk. I have the option to trust vlans. I trust this link because it is my router directly connected. 

    Why would I want to individually trust vlans as opposed to trusting all vlans?

    Or put another way, why would I want to untrust vlans?



  • 2.  RE: Trunk VLAN Trusting best practices?
    Best Answer

    EMPLOYEE
    Posted Dec 27, 2017 06:08 PM

    By default, all VLANs on a trunk are trusted.  You would "untrust" a VLAN on a trunk if you wanted wired users only on that wired VLAN to get a captive portal when that wired  user traffic is coming into the controller, for example.  99% of the time it would be the default, which is trusted and passing traffic