Wireless AP 1252

Hi,
I have two lan segments. I have few queries ragrading the wireless connectivity between these two lan segments.
1) Can I use AP 1252 as a bridge to connect both these lan segments ?
2) If yes, which radio will it use 802.11g/802.11n ( AP 1252 supports both g & n ) ?
3) If AP 1252 can be used to join both these lan segments via 802.11n, what mode do I need to configure it Autonomous/LWAPP ?
I need the answer asap. thanks in advance.

I have two lan segments. I have few queries ragrading the wireless connectivity between these two lan segments.
What do you mean? I understand that you have to LANs. Can you clarify what you mean by "segments"? Do you have, say, VLAN 4 and VLAn 9 and you want them to communicate with each other?
Or do you mean that you have two sites but with one VLAN and you want to link them together with a pair of 1250. If this is the case, then wireless point-to-point is the way to go. I'd recommend you use Autonomous IOS to get this to work.
Wireless Bridges Point-to-Point Link Configuration Example
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008058f53e.shtml

Similar Messages

Secure Wireless Site to Site Bridge - Aironet 1300 or 1252?

Hi there,
We're planning to connect a building no more than 50m away to our network via wireless (after careful research. The builing will only house 2 people, one requiring just internet and email access for ordering materials, the other will be doing document scanning - currently scanning files of roughly 15Mb every 3-5 minutes to an SQL server in the main building. They will also need to retrieve similarly sized files from said server within the same timescale. The solution would need to offer WPA2 security and a hidden SSID.
I have been pointed in the direction of the Aironet 1100 which now appears to be discontinued, so the Aironet 1300 was suggested instead. Will this 54g device be sufficient for the activities above and if so, I guess I will just need to configure each unit as a bridge (1 per building?)
I have also been looking into N type devices and found the Aironet 1252 but I believe that this is an internal device? I have the facility to locate it by a window/ very close to the outside of the building on both sites but not sure if this would be cost effective. Am I right in thinking the 1252 would require me to purchase additional antenna to go with it? If so, what type would be suitable as there are several listed on the site.
Finally. I'd like the solution we go with to be expandable (if it allows) as another building within the same area is also being looked at and would benefit from having a similar connection to it. Whether the bridging would allow for this, or another 2 units would need to be purchased is something I am unsure of.
I'd really appreciate some feedback from someone with experience of both units or experience in setting up a similar configuration as I am quite new to this side of wireless
I have included a basic Visio diagram of my proposed configuration; I hope it is of some use.
Thanks in advance.

Hi,
the 1310 will offer sufficient throughput. But if you add buildings, maybe you will start reaching the limit ...
The problem with the 1250 is that it's not meant to go outdoor as it is, apart from that it's perfect for the job.
The type of antennas strongly depend on the location of the building.
If the 3 buildings are in a line with the main building in the center, you will need an omnidirectional antenna. The point is that your bridges should all hear each other, so their coverage zone should include all other bridges. Then it's possible to have one AP at each site, the main site AP being "root" and the other being "non-root". If too hard, you could also go with 2 APs at the central site and then you can go with directionnal antenna toward each building.
And the 1310 can come either with an internal antenna that is very directionnal or with external antennas connector. The 1250 is always for external antennas.
Note also that the 1250 requires a bit more power than normal PoE allows.
I hope this helps,
Regards,
Nicolas
===
Don't forget to rate answers that you find useful.

Using MBSSID - new 1252 wireless APs not letting hosts connect

Solution:
After spending a few weeks working with Cisco in trying to figure out why new 1252 APs weren't getting a DHCP address from our Juniper SSG5 firewall (on different VLANs for each SSID), I finally got to a Cisco tech who knew the answer, so am posting it here to perhaps help someone else.
Using MBSSID, according to the first tech, only one can be in open authentication mode (e.g. no WEP, WPA, etc.) You can have multiple SSIDs that utilize the same method of authentication, just not more than one of them open.
Using MBSSID, on some wireless NICs that are apparently somehow sensitive to it, only one SSID can be in guest/broadcast mode. This ultimately was the solution to our connectivity issue.
It would be good to have documented what those NICs are that experience this problem.

gcgeorge wrote:
Hi Fiedi,
     Thanks for you reply.
     The guests are both configured to use a bridged adaptor on the wireless adaptor.
     I am currently using the rac1-priv IP address (192.168.0.101), and it does not work. If I try the public or VIP addresses, they do not work either - presumably since they are on a different subnet.
     Thanks
     Gavin
You will not be able to connect through private network as there isn't listener listening in that IP.
Try change your wireless IP to network 192.168.2.x and try to ping the guests public IP
Cheers

Urgent Help Required for Unified wireless network help

Dear Community
i need urget help for a wireless unified network setup to deploy it in a college
actually what is the senario for this network that i have a WLC 5500 and 12 lwapp 1252 series APs for this deployment ant there is allready an existing lan
network to connect with it the new wireless unified setup.
here is above proposed topology .
i need help for this setup like
i know the basic configuration on controller to do but i really do not know that from GUI what steps i need to configure on controller for each access points as you can see above i have three floors for building and i want to configur three SSIDs like Employ,contractors and Guest for each floor and how to configure encryption type and shared key for each SSiD.
and what i have to configure for APs to join them with controller
and hoe to configure RF grouping for each floor.
please i need urgent reply because i have tp finish this all setup in one weekonly
thans in advance.

Hi,
Wat ever you want.. the below link has everything.. Just click on the stuff that you neeed fro mthe menu and this will do it for you!!
http://www.cisco.com/en/US/docs/wireless/controller/7.0/configuration/guide/c70.html
1>> Configure WLANs.
2>> Configure AP Grouping.
Regards
Surendra

Wireless Design - Best Practices for Data, Voice, and LBS

Hi,
I am currently in the process of designing a WLAN for a new hospital and I am getting some push back from my sales team. The requirements of the WLAN are data, voice, and location based services (RFID for medical equipment) ... needs to be 2.4 GHz for Guest and some apps/clients but primarily 5 GHz for most of the clients ... lastly needs to be N compatible for future use.
So, I did a predictive design with 1252's on the perimeter with 2.4 and 5 GHz patch antennas and 1142's in the middle to fill gaps ... I also scoped out 2 5508 for redundancy .... total design with -65 at my edges was 169. However, this is getting push back because of several cost issues ....
1. The bundle that Cisco offers for 5 100 AP license 5508 WLC is cheaper than buying 2 250 AP licenses WLC's ... which doesn't make any sense to me because I think 5 devices is over kill
2. The sales engineer is concerned about the power issues with the 1252's ... customer would rather not use power injectors ... and although they would have 6500's at there core ... they would only have basic switches in their IDF's so I wasn't sure which POE Switches would be able to handle 1252 but cost was an issue there as well
So, for my understanding when you are doing a WLAN design for LBS it's always best to have APs or antennas on the perimeter for better triangulation ... it makes more sense to me to do that with patch instead of Omni's ... however my sales engineer wants to use all 1142's ... so my question is what are the pro and cons behind using all Omni's or using Patch and Omni's?
Furthermore, if anyone has any documentation supporting why I would not use all Omni's that would be great because all the articles I have read on LBS just state that placement of APs is critical but doesn't give no specifics on whether it's a good practice to place them on the perimeter using a specific type of antenna or what.
Thanks in advance for you help and any ideas about this design!!!

1. The 5508 is expensive because it's alot faster than the 4400 plus there are some features exclusive to the 5508 such as OfficeExtend. As the old network design adage goes: Your design can be done correctly, cheap or fast. Choose two.
2. The 1250 requires 19.5w of power to enable FULL MCS rates to both radios. Only the 3560E, 3750E or the Sup720 is capable of supporting that. Upgrading the IOS of the 1250 to 12.4(10b)JDA3 will allow the AP to operate both radios at 15.4w BUT at a lower MCS rates. Correct placement of the AP and the correct use of the antennaes will also help in the signal distribution.
3. Patch antennaes are mostly directional. The 1140 is onmi-directional BUT the signal strength is not as powrful as the 1250 at full power. The AIR-ANT2451NV is an omni-directional patch designed for the 1250.
Cisco Aironet Antennas and Accessories Reference Guide
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html
Cisco Aironet 2.4 GHz and 5 GHz Antennas and Accessories
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008022b11b.html
Some of the new patch antennaes for the 1250
Cisco Aironet Dual Band MIMO Low Profile Ceiling Mount Antenna (AIR-ANT2451NV-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant2451nv.pdf
Cisco Aironet Very Short 5-GHz Omnidirectional Antenna (AIR-ANT5135SDW-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant5135sdw.pdf
Cisco Aironet Very Short 2.4-GHz Omnidirectional Antenna (AIR-ANT2422SDW-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant2422sdw.pdf
Cisco Aironet 5-dBi Diversity Omnidirectional Antenna (AIR-ANT2452V-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant2452v.pdf
Cisco Aironet 5-GHz MIMO Wall-Mounted Omnidirectional Antenna (AIR-ANT5140NV-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant5140nv.pdf
Cisco Aironet 5-GHz MIMO 6-dBi Patch Antenna (AIR-ANT5160NP-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant5160np.pdf
Cisco Aironet 2.4-GHz MIMO Wall-Mounted Omnidirectional Antenna (AIR-ANT2450NV-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant2450nv.pdf
Cisco Aironet 2.4-GHz MIMO 6-dBi Patch Antenna (AIR-ANT2460NP-R)
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/data_sheet_ant2460np.pdf

Is there any limitation of firmware or hardware for QoS configuration (4400 controller & 1252 AP's)

Hi Experts,
Before proceeding for adding AP model 1131 and 1252 into my set-up , I need to know whether any limitation of firmware or hardware for QoS configuration in wireless set-up .
I have 4400 controller and 1130 & 1250 AP models.

Hi Vinod,
Since you have 4400 controllers, you can run upto WLC 7.0.x code. Refer this for more detail
http://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html
there is no specific limitation to 1131/1252 AP model as such, everything is WLC software dependent.
From later software 7.4.x,7.6.x,8.x, lots of improvement for QoS configuration & bandwidth control, but since your controller is old hardware, you cannot have those latest features.
here is a reference post on how QoS works in wireless environment
http://mrncciew.com/2012/11/28/understanding-wireless-qos-part-1/
HTH
Rasika
*** Pls rate all useful responses ****

Do i have the right equipment for CCNA-Wireless?

Hello community i am Adan Ramirez, an aspiring Cisco Tech, and I'm trying to get the right equipment for the ccna wireless.
Here is my shopping list:
1. 2 Cisco LWAP 1252
3. NME-WLC6-K9 module card
Here is what i already have at home:
1. 1841(2x) - iOS 12.4(24)
2. 2811(2x) - iOS 15.something something...
3. 3560 - iOS 15.something something
4. 2960 - iOS 15.something something
Problem: I don't know if the NME needs the latest iOS, the one i saw on eBay says it's version 4.2 something something. I don't have three thousand dollars to buy a brand new module with iOS 7.0 or $ 12,000 to buy a 5500 WLC. I'm a broke college student T_T, help!
and thanks!

Hi,
This is sufficient for your CCNA wireless studies. Probably I would add a VM which can run WCS.
If you really need a WLC, you can buy 4400 series controller (can run upto 7.0.x) for ~200-300 USD. This is the version tested in CCIEv2.0 lab exam as well.
This is the Cisco forum you should follow for this CCNA-Wireless studies
https://learningnetwork.cisco.com/groups/ccna-wireless-study-group
Good luck
HTH
Rasika
**** Pls rate all useful responses ****

New macbook pro 2011 weak and dropping wireless connection

Just looked throught this part of the forum and found out there are a lot of people out there which seem to have the same problem as me.
I purchased a new modell 2011 MBP on the very first day from our apple store.
At home, sitting directly beside the wireless router I didn´t noticed anything wrong.
I have got beside of the Mac OS a bootcamp Prt. with Windows 7 on it and everythign works fine so far.
Five days after purchased I started traveling on business and at present we are for some weeks in Melbourne. Were having a wireless connection in our appartement and here I have got massiv problems with my connection.
We are having altogether four windows mashines with us, my IPad, my Iphone, another HTC smartphone, and my new Macbook.
All the other devices connecting to our room wireless without problems. The net strengh is not fantastic but the other devices bringing it up to four bars on the windows wireless symbol in the task bar. None of the other computers where ever loosing the connection.
Only my macbook can not make it over three bars and its going on and off. Donwloads fail freuquently because the conection is interrupted more than one times..
In my opinion this problem is even worse on the Windows OS and a bit better but far away from beeing good and acpetable on the Mac Os.
I hope its only a driver issue and there is no hardware problem with the new mashine. Other than this I love the new notebook and I am very satisfied with its performance.

Hi,
I've noticed similar behavior - specifically with the new 2011 MacBook Pro 13 and 17" models (tested) on Cisco infrastructure - using a 1252 and 3500i/e series APs running in dual-band mode, with 5GHz preferred. I've seen the transfer rates when in close proximity to the AP move between 72mbit and 243 - occasionally 300. My 2010 system in the same position is a solid, dependable 300.
They did modify the wireless chipset in the new 2011 MacBook Pros to replace it with a true 3x3 802.11n device. Cisco have long praised the Broadcom chipsets so I will see if their wireless team can advise me on what this new gear is capable of.
I currently look after a very large deployment of wireless LAN equipment so my wireless performance is absolutely critical to my work - the 2010 system was a godsend and a testament to how wireless devices should be built. It looks to me like this could be a software issue so I only hope Apple resolves this ASAP. I'll hang on to my 2010 system for now...

Manually add Access Point to 2504 Wireless Controller

We have a 2504 Wireless Controller and it works great!
We currently have 6 Access Points (Aironet 1252) connected.
We just added the sixth one a few weeks ago and with a properly configured and fully functioning Wireless Controller, it was super easy.
Now, I have been assigned to add another Access Point, but at a remote site.
The plan is to have up to three or more APs at this remote location and we want them to talk back to the Wireless Controller.
We have plenty of licences on our current Wireless Controller.
Do do not want to spend the funds for another Wireless Controller and more licenses.
1. How does one manually add a Aironet 1252 to the 2504 Wireless Controller
2. If the AP is on a different subnet than the Wireless Controller, how does one get it registered?
3. The best for last: Can a Aironet 1252 talk to a 2504 Wireless Controller over a WAN link?
If so, how?
Thank you!
Bryan Smith

Here are some links
AP join
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00806c9e51.shtml
FlexConnect
http://www.cisco.com/en/US/docs/wireless/controller/7.2/configuration/guide/cg_flexconnect.html
Sent from Cisco Technical Support iPhone App

Is anyone using a 1252 ap in bridge mode with channel bonding?

Is anyone using a 1252 ap in bridge mode, with channel bonding?
I had a question a while ago from a customer with regards to bridging with a 1252 ap to increase throughput for a wireless link he was using, from the throughput improvements in 802.11n. At the time I spoke to Cisco Pre-Sales, and they indicated that the bridge function in the 1252 exists for 'testing' purposes. I advised our customer that although it should be possible to implement, we may run into difficulties with TAC support ect. in the event of problems with the link.
Can anyone comment if this is a Cisco validated/approved design now?
Also, has anyone done this and tested the throughput achievable?
Has anyone bridged both 2.4Ghz and 5Ghz radios on a 1252?
The reason I ask is I've seen a note about a Cisco 5Ghz 802.11n bridge being launched.
Thanks in advance.
Alex.

Hi All,
Thanks for all the feedback; I have finally done some throughput testing with the 1252's. Please note, this is very rough, just to give an idea on throughput that's achievable, and what you can enable. Did this a few weeks back, and have now wiped the cnf, so dont have the show runs any more....
The two devices were set up a few feet apart, with the standard 2dBi and 3dBi antenna.
All tests done on the 5GHz radio with Autonomous AP IOS.
I did data transfers via a laptop either end of the link; transferring data using the Test TCP utility (wasn't going for scientific tests, just getting some idea of throughput).
802.11a @ 54mbs (20Mhz chan) WGB - root to non root = 2.43 - 2.5MB/Sec = 19.44 - 20 Mbps
802.11a @ 54mbs (20Mhz chan) WGB non root to root = 2.42 - 2.44MB/Sec = 19.44 - 20 Mbps
802.11n @ 'n' rates( 20Mhz chan) WGB root to non root = 6.18 - 6.33MB/Sec = 49.44 - 50.64 Mbps
802.11n @ 'n' rates ( 20Mhz chan) WGB non root to root = 4.77 - 5.00MB/Sec = 38.16 - 40 Mbps
802.11n @ 'n' rates ( 40Mhz chan) WGB root to non root = 8.59 - 8.58MB/Sec = 68.64 - 68.64 Mbps
802.11n @ 'n' rates ( 40Mhz chan) WGB non root to root = 6.35 - 7.20MB/Sec = 50.8 - 57.6 Mbps
802.11n @ 'n' rates ( 40Mhz chan) Bridge root to non root = 9.73 - 10MB/Sec = 77.84 - 80 Mbps
802.11n @ 'n' rates ( 40Mhz chan) Bridge non root to root = 8.40 - 8.57MB/Sec = 67.2 - 68.56 Mbps
So basically, as per the above posts, you can implement bridging on the 1252's and utilise the 802.11n rates and features, SGI, Spatial Streams and Channel Bonding etc, to achieve higher throughput.
Also, as per the above posts, this is still not supported by Cisco, so, in my case, I'd be highlighting that to customers straight off, but don't see it as too much of an impediment to deploy, as long as the customer weighs up the risks.
On a side note, I attended a Cisco session recently, and was told that the 802.11n Bridge, (the 1430?) was on hold indefinitely. My feeling is that this makes it more pressing that Cisco introduces support for bridging on the 1252.
Get in the ear of your local Wireless SE's, the more they hear it, the more they'll moan to the Wireless BU in San Jose! ;-)
Bridging with 802.11n has some interesting possibilities, I worked with Alvarion 5GHz bridges 6 or 7 years ago, that could do 'near LOS' - Worked well in cities, using reflection of the RF from buildings. I had never heard of 802.11n back then, but I'm guessing Alvarion was using MIMO to achieve good non-LOS connectivity in the 5GHz band.
Cheers,
Alex.

Eap-tls wireless machine authentication without AD

Hi all,
I'm having problems getting EAP-TLS to work when a client machine needs to connect to a WLAN (before logon)
I can make the user get a cert from my CA, login as local & connect to WLAN through EAP-TLS without any problem.
With admin account I can get windows to put user's cert into the machine store (Machine Account Personal Certificate Store),
but when it comes to a login attempt the RADIUS UserName lookS like "host/username" instead of "username" as user authenticate.
My question is that do I need to configure an Identity Store (like AD) for machine authentication on ACS or I can make use of the configuration as for user previously (on ACS for user authentication, the Identity Store is Certificate Authentication Profile --> Certificate CN value)
Clients are WinXPSP3, and I'm using CiscoACS 5.2, MS Certificate Services CA, WLC 4402, LAP 1252
Note: in my case, each user will have their own laptop so it's best if the machine is authenticated under user's name.
Thanks for your help,

Assuming you're using the stock XP wifi client.
When running XPSP3, you need to set two things:
1) force one registry setting.
According to
http://technet.microsoft.com/en-us/library/cc755892%28WS.10%29.aspx#w2k3tr_wir_tools_uzps
You need to force usage of machine cert-store certificate:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\EAPOL\Parameters\General\Global]
"AuthMode"=dword:00000002
2) add the ACS certificate signing CA to the specific SSID profile "trusted CA".
- show available wireless networks
- change advanced settings
- wireless networks tab
- select your SSID, and then hit the "properties" button
- select authentication tab, and then hit "properties" button
- search for your signing CA, and check the box.
I did with a not-so-simple autoIT script, using the "native wifi functions" addon.
Unfortunately I'm not allowed to share the script outside the company, but I'll be more than happy to review yours.
please cross reference to
https://supportforums.cisco.com/message/3280232
for a better description of the whole setup.
Ivan

AP 1252 in autonomous mode not sending framed-ip-address

I was attempting to use the Websense RADIUS Agent to transparently map wireless users in it's database. This is done by passing the RADIUS accounting packets through the websense server where Websense can read them and map the username and password. This works for our Cisco VPN clients and Anyconnect clients. The problem I have is that the 1252 AP does not send the framed-ip-address in the RADIUS accounting packet. The AP should know the client IP since it can be seen with "show dot11 association".
For whatever reason, the AP doesn't know the IP address. This is verified by enabling aaa acounting delay-start which delays the sending accounting packets until the peer IP is known. With this command in, no accounting packets are ever sent from the AP.
Does anyone know why the AP doesn't include the framed-ip-address in the accounting packets? Or, why the AP is not able to learn the peer IP address from the client association information?
Thanks,
Mark

For a session to be disconnected, the values in one or more of the key fields in the POD request must match the values for a session on one of the network access server ports. Which values must match depends on the auth-type attribute defined in the command. If noauth-type is specified, all four values must match. If no match is found, all connections remain intact and an error response is returned. The key fields are as follows:
User-Name
Framed-IP-Address
Session-Id
Server-Key

Tips carrying out a wireless (including N) survey.

Hello all, I'm about to start a survey next week and i'd like to ask you expertise on it.I am using 1252Ap and airmagnet express edition to survey both 2.4/5 ghz (a,b,g,n),3 x 2422dg-r and 3x5135dg-r antennas.
First,I am in a doubt on how shall i place the ap during the survey. The customer, most probably, would like to install the ap inside the false ceiling.By reading the manuals of 1252 ap, i could understand that the ap (antennas) should face to the floor . So,during the survey shall i simulate this position ? What if, i place the ap in a vertical surface (wall) and carry out the survey? Will the results of this action reflect to the real ap mounting place( inside the false ceiling) ?
Second, the ap will have to accommodate both data and voice.I'm thinking to perform the survey two times for each floor,one for 2.4ghz and one for 5ghz. Which is the best practice to follow during the survey?
I would appreciate your opinion on these questions !

The unfortunate truth about a wireless survey is that you should do your absolute best to emulate working conditions during the survey. In other words, mount the APs as you will eventually mount them, and (if possible) conduct the survey during normal working hours/conditions.
So yes, mounting the AP on a vertical wall or mounting it differently than where it will eventually go will affect the survey results. It might not affect it that much, but it might also affect it enough to create dead spots.
As for the survey itself, you can conduct both 2.4GHz and 5GHz surveys at once. I'm familiar with AirMagnet, but not the express version, so this assumes it can handle both at once like the full version.
Another alternative is to simply perform a 5GHz survey. 2.4GHz RF energy propagates far better than 5GHz, and it's almost always a safe assumption that a 5GHz survey will work for a 2.4GHz deployment. This is only an option if you aren't required to produce both 5GHz and 2.4GHz maps, or something like that.
Finally, for voice surveys, be sure to use -67dBm as your threshold for RSSI. You also want to plan on 15-20% overlap of APs.
There are some thoughts. Have fun surveying!
Jeff

1252 802.11n Throughput, no more than ~140Mbps?

Hello, I have read most of these ports regarding the speed of the 802.11n on the 1252 AP, and can't seem to figure this one out. I have a WISM with a light weight 1252 being powered by a power injector running 7.0.98.0 code. I have everything enabled for 802.11n, and connet with Windows 7 at 300Mbps. After doing many FTP speed tests I can never seem to break the ~140Mbps mark, even after enabling 802.11a 40mhz channel bonding and all the appropriate MCS rates and WMM/WPA2/AES settings. This is a mixed RF environment with clients running a/b/g/n all over. Am I missing something or is really the limit of our environment. I tested 2 different laptops with N cards. My card is an Intel 4965 ABG with latest drivers.
Thanks!

+5 to George. The maximum ever observed in very specific conditions (specific packet size, no one else connected) is around 170/180 "real" Mbps. In a typical real life scenario, reaching 140/150 is good and expected.
For the theoretical explanation, it's the data frame that is sent at 300Mbps. You must also count that EVERY single wireless frame has to be acked by the receiving side, that there are still the beacons and management frames sent at low data rates (1Mbps often, and not 300) and as george said it's half duplex, all in all 802.11a/g offer less than half the speed (20 instead of 54) and with a few protocol improvements 11n offers about really half the speed (150 with 300Mbps data rate).
It's actually the same concept with wired world. Gigabit ethernet means data frames are sent at 1Gbps speed but you have to count the protocol overhead (waiting for tcp ack, etc ...). The difference is that there is very little overhead on wired and it's full duplex so you get very close to 1Gbps.
Hope this clarifies.
Nicolas

Cisco Aironet 1252 AP Poor range

Hi,
I have 6 no. 1252 access point installed in my college on different 6 floor they are configured different channels on respective AP and i have enabled 2.4 and 5 Ghz wireless setings with 5Ghz antena. but still i m not getting full range in fornt of access point distance near by 2-3 meters its showing half range in my laptop wi-fi adapter. below is the access point configuration detail.
First-Floor#show configuration
Using 2107 out of 32768 bytes
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname First-Floor
aaa new-model
aaa authentication login default local
aaa authorization exec default local
aaa session-id common
dot11 ssid MITSOM
authentication open
guest-mode
power inline negotiation prestandard source
username isource privilege 15 secret 5 $1$wSSH$mAOV0jfC3ozp/6XGbm9E40
username mitsom privilege 15 secret 5 $1$0AC.$51TLWg1ffjKd/NeJXDn3o1
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption key 1 size 40bit 7 87C03667BEB5 transmit-key
encryption mode wep mandatory
ssid MITSOM
speed basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2.
m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
channel 2412
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface Dot11Radio1
no ip address
no ip route-cache
encryption key 1 size 40bit 7 318B1C92A4DC transmit-key
encryption mode wep mandatory
ssid MITSOM
no dfs band block
speed basic-6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6.
m7. m8. m9. m10. m11. m12. m13. m14. m15.
channel dfs
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface GigabitEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface BVI1
ip address 10.1.55.11 255.255.255.0
no ip route-cache
ip default-gateway 10.1.55.254
ip http server
ip http authentication aaa
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip
line con 0
line vty 0 4
end

1) I am using 5 Ghz antennas.
What model of antennas are these and how many have you installed on a 1252? What about the 2.4 Ghz? Are the 5.0 Ghz antennas installed on the 5.0 Ghz radio?
I have installed access point in corridor and antenna direction towards the wall. Depending on what antennas you've installed, it's advisable to mount the AP with the Cisco logo pointing to the client.

Wireless AP 1252

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