Netgear WC7520 - ProSafe 20-AP Wireless Controller Reference Manual

Untagged VLANs

When the Untagged VLAN check box is selected, one VLAN can be configured as an 
untagged VLAN:

When the wireless controller sends frames associated with the untagged VLAN to the 

LAN (Ethernet) interface, those frames do not carry an 802.1Q VLAN header. 

When the wireless controller receives untagged traffic from the LAN (Ethernet) interface, 

those frames are assigned to the untagged VLAN.

If the Untagged VLAN check box is cleared, the wireless controller tags all outgoing LAN 
(Ethernet) frames, and accepts only incoming frames that are tagged with known VLAN IDs.

Clear the Untagged VLAN check box only if the hubs and switches 

on your LAN support the VLAN (802.1Q) standard. Likewise, change 
the untagged VLAN value only if the hubs and switches on your LAN 
support the VLAN (802.1Q) standard.

Changing either of these values will result in a loss of IP connectivity if the hubs and switches 
on your network have not yet been configured with the corresponding VLANs.

Manage the DHCP Server

Make sure that a DHCP server is available; otherwise, the 

Discovery Wizard does not function correctly. If you already have a 
DHCP server on your network, do not enable the DHCP server on 
the wireless controller.

The wireless controller can function as a DHCP server. Multiple DHCP server pools can be 
added for different VLANs. This screen lets you enable and configure the DHCP server. You 
can also add DHCP servers.



Select Configuration > System > DHCP. The DHCP Settings screen displays. The 
following figure shows part of the DHCP Settings screen: