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Configuring Switching
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SonicOS 5.7: Advanced Switching Feature Guide and Screencast Tutorial
You can change the VLAN ID of PortShield groups on the SonicWALL NSA 2400MX appliance. This
allows easy integration with existing VLAN numbering.
Unlike traditional Layer 2 switches, the SonicWALL NSA 2400MX appliance does not allow changing port
VLAN membership in an ad-hoc manner. VLAN membership of a port must be configured via PortShield
configuration in the SonicOS management interface.
For more information about configuring PortShield groups, see the “Configuring PortShield Interfaces”
chapter in the SonicOS 5.7 Administrator’s Guide.
A virtual interface (called the VLAN Trunk Interface) is automatically created for remote VLANs. When
the same remote VLAN is enabled on another trunk port, no new interface is created. All packets with the
same VLAN tag ingressing on different trunk ports are handled by the same virtual interface. This is a key
difference between VLAN sub-interfaces and VLAN trunk interfaces.
As shown in Figure 4, the Name column on the Network > Interfaces page displays the VLAN Trunk
Interfaces for the VLAN trunks on which VLAN IDs 100 and 200 are enabled.
Figure 4 VLAN Trunk Interfaces on Network > Interfaces Page
You can enable any VLAN, local or remote, on a VLAN trunk to allow bridging to to respective VLANs on
another switch. For example, local VLAN 3787, created from a PortShield group, can be enabled on the
VLAN trunk for port X20, which also has two remote VLANs enabled on it.