Table 263: Wireless Network Configuration - D-Link DWS-4026 User Manual

D-Link Unified Access System
Field
SSID
Hide SSID
Ignore Broadcast
VLAN
L3 Tunnel
L3 Tunnel Status
L3 Tunnel Subnet
L3 Tunnel Mask
Page 426 Basic Setup

Table 263: Wireless Network Configuration

Description
Wireless clients identify a wireless network by the SSID, which is an alphanumeric key that
uniquely identifies a wireless local area network. The SSID can be up to thirty-two characters
in length, and there are no restrictions on the characters that may be used in an SSID.
You can hide the SSID broadcast to discourage stations from automatically discovering your
access point. When the broadcast SSID of the AP is hidden, the network name is not
displayed in the list of available networks on a client station. Instead, the client must have the
exact network name configured in the supplicant before it is able to connect.
Disabling the broadcast SSID is sufficient to prevent clients from accidentally connecting to
your network, but it will not prevent even the simplest of attempts by a hacker to connect, or
monitor unencrypted traffic.
Hiding the SSID offers a very minimal level of protection on an otherwise exposed network
(such as a guest network) where the priority is making it easy for clients to get a connection
and where no sensitive information is available.
If a wireless client broadcasts probe requests to all available SSIDs, this option controls
whether the AP will respond to the probe request.
• Select this option to prohibit the AP from responding to client probe requests
• Clear this option to allow the AP to respond to client probe requests.
A virtual LAN (VLAN) is a software-based, logical grouping of devices on a network that allow
them to act as if they are connected to a single physical network, even though they may not
be. The nodes in a VLAN share resources and bandwidth and are isolated on that network.
The D-Link Unified Switch supports the configuration of a wireless VLAN. You can configure
each VAP to be on a unique VLAN or on the same VLAN as other VAPs.
When a wireless client connects to the AP by using this network (SSID), the AP tags the
client's traffic with the VLAN ID you configure in this field. By default, all networks use VLAN
1, which is also untagged by default.
Note: The VLAN ID you configure in this field can be overridden by the VLAN ID configured
for the AP in the RADIUS server. In other words, if your network uses a RADIUS server to
assign wireless clients to VLANs, the wireless client uses the VLAN ID from the RADIUS
server and ignores the VLAN ID configured on the VAP.
The L3 Tunnel feature allows mobile stations to maintain their IP connections while roaming
from one access point to another access point even when these access points are attached
to different IP subnets.
Note: When L3 tunneling is enabled the VLAN ID is not used. In fact, the switch puts the
management VLAN ID, if any, on the tunneled packets.
Note: If the wireless network topology changes (for example, a Unified Switch reboots) while
the L3 tunneling feature is in use, you should perform an ARP refresh on wired clients to
speed up the process of re-establishing connectivity to the tunneled network.
This field shows the status of L3 Tunneling. In order for tunnel to be completely configured,
routing must be enabled and the switch must have a routing interface IP address that is in the
tunnel subnet. The the status can be one of the following:
• None (L3 Tunnel is disabled or the network is not associated with any AP profiles)
• Configured
• Not Configured - Routing Disabled
• Not Configured - No Routing Interface
The network IP address you enter in this field must be in the same subnet as a routing
interface for the WLAN that you define on the switch.
Enter the subnet mask for the network IP address on the L3 Tunnel subnet.
Software User Manual
Document 34CSFP6XXUWS-SWUM100-D7
12/10/09