Netgear WN203 - ProSAFE® WIRELESS-N SINGLE BAND ACCESS POINT 사용자 설명서

Spanning Tree Protocol (STP) provides network traffic optimization in locations where 
multiple wireless access points are active by preventing path redundancy. If you have more 
than one active wireless access point at your location, NETGEAR recommends that you 
enable STP.

The 802.1Q VLAN protocol on the wireless access point logically separates traffic on the 
same physical network:

Untagged VLAN. When the wireless access point sends frames that are associated with 
the untagged VLAN from its Ethernet interface, those frames are untagged. When the 
wireless access point receives untagged frames over its Ethernet interface, those frames 
are assigned to the untagged VLAN.

Use an untagged VLAN only if the hubs and switches on your LAN 
support the 802.1Q VLAN protocol. Likewise, change the untagged 
VLAN value only if the hubs and switches on your LAN support the 
802.1Q VLAN protocol. 

Tagged VLAN. When you clear the Untagged VLAN check box, the wireless access point 
tags all frames that are sent from its Ethernet interface. Only incoming frames that are 
tagged with known VLAN IDs are accepted.

Management VLAN. The management VLAN can be active only when the wireless 
access point functions as a point-to-point or point-to-multipoint bridge (see 

on page 75). The management VLAN is used for managing traffic 

(Telnet, SNMP, and HTTP) to and from the wireless access point.

Frames belonging to the management VLAN are not given any 802.1Q header when they 
are sent over the trunk. If a port is in a single VLAN, it can be untagged. However, if the 
port is a member of multiple VLANs, it needs to be tagged.