Extreme Networks Altitude 4700 Series, Product Reference Manual

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Altitude 4700 Series Access Point Product Reference Guide
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Each WLAN having a unique WLAN name. If a WLAN’s name is same as the ESSID, it’s difficult to
distinguish them when doing WLAN-BSSID grouping.
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Not using WLANs with same ESSID and security scheme. If this were to be deployed, beacons will
contain the same ESSID and security scheme data, but different BSSIDs would be generated,
potentially confusing MUs.
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Ensuring WLANs with the same ESSID use the same authentication method(s) in their security
policies.
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WLANs with the same ESSID not use both WEP64 and WEP128 as security schemes. If both are
defined for the same ESSID, MUs configured with WEP could be associated with the wrong WLAN
and fail to get an IP address.
NOTE
Since the AP supports a maximum of 4 different BSSID groups, Extreme Networks recommends grouping
WLANs with common security schemes under the same BSSID group to support a greater number of WLANs.
To configure multiple cipher support:
1 Create a WLAN supporting WEP64 as its security scheme.
For information on how to create or edit a WLAN and assign it a security scheme, see “Creating/
Editing Individual WLANs” on page 148 .
For information on how to assign a WLAN a security policy supporting WEP, see “Configuring WEP
Encryption” on page 208 .
2 Create a second WLAN with the same ESSID as the WLAN created in step 1. However, assign the
second WLAN a security policy supporting WPA2-CCMP.
For information on how to assign a WLAN a security policy supporting WEP, see “Configuring
WPA2-CCMP (802.11i)” on page 213 .
NOTE
Ensure the WLANs created in steps 1 and 2 have unique names assigned.
3 Map the WLANs created in steps 1 and 2 to different BSSID groups.
a Select Network Configuration > Wireless > Radio Configuration > Radio1 or Radio 2 from the Access
Point’s menu tree.
b Select the Advanced Settings tab.
c MAP BSSIDs (4 BSSIDs are available for mapping) to WLANs. For additional information on how
to MAP BSSIDs to WLANs, see
“Configuring the 802.11a/n or 802.11b/g/n Radio” on page 174 .
CAUTION
When WLANs with WEP64/WEP128/TKIP/CCMP cipher suites are in the same BSSID group, a
common cipher for the group encryption key cannot be set. Extreme Networks recommends grouping WLANs
strategically into different BSSID groups. The status field in the WLAN-BSSID group mapping displays whether
the WLANs in a particular BSSID group are up or not.