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Updated:December 10, 2018
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Configuration of the Default VLAN on 200/300 Series Managed Switches
The default VLAN is created by default when the switch is powered on, all interface are set to trunk mode and as an untagged members of the default VLAN, which gives free access to the administrator to connect to the configuration utility and configure the switch. The default VLAN cannot be deleted, but you can change the default VLAN ID, which provides security to the switch, since a switch always creates a default VLAN 1. If you change the default VLAN ID to a different number, then the switch assigns to all the interface the new default VLAN ID, and set all interface as untagged members of the new default VLAN. This way, security is added to the switch since the default VLAN ID value is different than 1.
This article explains how to configure the default VLAN on the 200/300 Series Managed Switches.
• SF/SG 200 and SF/SG 300 Series Managed Switches
Configure the Default VLAN ID
Step 1. Log in to the web configuration utility and choose VLAN Management > Default VLAN Settings. The Default VLAN Settings page opens:
Step 2. Enter the default VLAN ID in the Default VLAN ID After Reboot field.
Step 3. Click Apply to save the new default VLAN ID.
Note: The current VLAN ID takes effect until the switch is rebooted.