[c-nsp] Access Point & 2 SSID's Trunked to Vlan's

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Tue Dec 18 10:51:53 EST 2007


Not a wlan expert, but apparently WDS & Fast Secure Roaming
(http://www.cisco.com/en/US/docs/wireless/access_point/12.3_8_JA/configu
ration/guide/s38roamg.html#wp1002608) achieves this.. It's on my to-do
list for my private WLAN :)

	oli

Dan Letkeman <> wrote on Tuesday, December 18, 2007 4:43 PM:

> That all makes sense.  What other technologies, besides wireless lan
> controllers, would make it possible to roam from ap to ap?
> 
> Dan.
> 
> On Dec 18, 2007 8:17 AM, <A.L.M.Buxey at lboro.ac.uk> wrote:
> 
>> Hi,
>> 
>>> If I copy this configuration to my other ap's in the building will a
>>> client(notebook) automatically roam from ap to ap without getting
>>> disconnected?
>> 
>> not without using other technologies - as each AP runs the
>> authentication so your client needs to reauthenticate when
>> associating with each AP 
>> 
>>> Do you have 802.11a clients or is the 802.11a radio used for
>>> something else? How would I setup the AP so there is a minimum
>>> signal level that is allowed?  eg, if a user is outside the
>>> building and still connected that it won't work if the users device
>>> is say past -75db... 
>> 
>> you can start off by using the 'speed' command to select the
>> supported connection rates - but a decent antennae may negate the
>> 'security' of such a setup. personally i feel that WPA2 is strong
>> enough that it doesnt matter if the signal can be received from
>> further away. you could also turn down the power of the antennae
>> (antenna gain) - but, once again, that will affect how your own
>> users will receive the wireless.  place 
>> a decent zinc/neodynium mesh or somesuch in your wall cavities -
>> there are some papers out there describing such blocking methods.
>> 
>>> Also, I accidentally ordered LWAPP's and I have converted them back
>>> to autonomous ap's.  Is there any difference between a converted
>>> one vs a bought autonomous ap?
>> 
>> apart from how it appears in CDP, inventory lists and its bootloader?
>> no functional difference as far as i'm aware.
>> 
>> alan
>> 
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