CISCO MAC ADDRESS SECURITY PER VLAN HOW TO
To learn how to configure this feature, click here for instructions. Protocol-Based VLAN - The VLAN is recognized from the Ethernet type Protocol-to-VLAN mapping of the ingress interface.Subnet-Based VLAN - The VLAN is recognized from the source Subnet-to-VLAN mapping of the ingress interface. To learn how to configure this feature, click here for instructions.MAC-Based VLAN - The VLAN is recognized from the source Media Access Control (MAC)-to-VLAN mapping of the ingress interface.Tag - The VLAN number is recognized from the tag.Many different classifications exist, and if more than one classification scheme is defined, the packets are assigned to the VLAN in this order:
The packets are distributed with respect to different classifications and are assigned to VLANs. VLAN groups are used to load balance the traffic on a Layer 2 network. For this reason, the user cannot take advantage of the many features of VLAN. Non-standard devices are used to pass traffic between different VLANs in order to include the devices participating in a specific protocol. Networking devices on which multiple protocols are running cannot be grouped to a common VLAN. VLANs can also be used to enhance performance by reducing the need to send broadcasts and multicasts to unnecessary destinations. Only users that belong to a VLAN are able to access and manipulate the data on that VLAN. In scenarios where sensitive data may be broadcast on a network, VLANs can be created to enhance security by designating a broadcast to a specific VLAN.
Configure Media Access Control (MAC)-Based Virtual Local Area Network (VLAN) Groups to VLAN on a Switch ObjectiveĪ Virtual Local Area Network (VLAN) allows you to logically segment a Local Area Network (LAN) into different broadcast domains.
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