Cisco Wireless :: WPA2 On Aironet 1242AG
Mar 9, 2012
I am in the process of moving our office and part of the task involves relocating our existing wireless access points. They are all 1242AG's running the c1240-k9w7-mx.124-10b.JDA3 IOS. I would like to change the security on the access points to WPA 2 but that selection is not available. I think upgrading the IOS will solve this problem but I am not sure. So I guess I have two questions:
1) Does this Cisco model support WPA 2 ?
2) If so what IOS do I need to load to make WPA 2 available?
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Feb 3, 2013
I want to know how to have a double SSID but it's forbidden to have a wireless interruption with the wep which is on my cisco aironet 1242AG. I need to have wpa2 in addition of the wep.
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Nov 14, 2012
I'm having a little issue with some Cisco Aironet1242ag WAP's. I receive a call at least twice a month stating that some of the WAP's are not giving out internet connection. What I always do is go to my patch panel and disconnect those WAP's not working and connect them back again so they can power cycle. These WAP's are connected to a Cisco3750g. Once the WAP's boot up, the users can connect to the WAP and connect to the internet.
I don't know if these WAP's are filling up with some information that causes the access points to not connect to the WAN.
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Mar 15, 2012
According to the documentation, I'm supposed to be hitting the Esc key when I see the Loading "flash:/[imagename]" ####### ... line, but this doesn't seem to be working. I've tried hitting the Esc key a lot during those lines, holding it down, hitting it early, hitting it late, hitting it in the middle, and still no joy.
I'm trying to break into a handful of malfunctioning 1242AG APs to see if I can get them working, or if they're faulting hardware that's beyond repair. (So far they're all coming back with: no "IP_ADDR" variable set, so how to set that without breaking out of the boot cycle).
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Feb 12, 2011
I have a very special application where I need to connect as much as possible end devices to a single access point.The required data throughput per end device is very small - around 1 to 5 kbit/sec.I am using the Access Point Aironet 1242AG.
Questions :
1. What is the maximum number of simultaneous users that can be connected to a Cisco Access point, is it 255 or can be more ?
2. If I define multiple SSID’s, what if the total numbers of users that can be connected to a Cisco Access point
3. I there a simulator tool that can be used to simulate multiple wireless connections to an AP
4. Have anyone tested so many users connected to 1 Access point ?
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Sep 4, 2012
I've recently obtained a Cisco Aironet 1242AG WAP. I do realize this is not a standalone router. I would like to use it as an extension of my current router. So right now, the status light is alternating colors. If I understand this correctly, it cannot find the controller. I cannot telnet into it, or use the web broswer interface. They both say the connection is not available. However, when I check my DHCP table from my router, I see that an IP has been assigned to the MAC for the WAP. I've tried doing a factory reset by holding MODE before I plug in the power, and waiting until it turns amber. After a few minutes and going through a few LED changes, it goes back to continuosly alternating colors.
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May 24, 2012
I am attempting to configure two Aironet 1040 series wireless access points for the first time and am having some difficulty. This office does not have a RADIUS server so I would like to set them up to use WPA2 with a pre-shared key. However just how this is accomplished is not immediately apparent. I have attempted using both the command line interface and the web interface, but I get errors in both places. It doesn't seem like it is all that difficult, we're just talking about a few lines in the configuration file.
This is what I have so far:
Current configuration : 1684 bytes
!
version 12.4
no service pad
[Code].....
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Apr 29, 2013
We are using an Aironet 1240AG series wireless AP here to connect handheld scanners. They work fine on WPA. However, when we switch to WPA2, they often lose connection. We have tested on 802.11g and a bands, with various encryption types (TKIP, AES, TKIP/AES). Also, how can I update the outdated firmware without signing up for a service contract?
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May 18, 2012
I have an aironet 1141 with multiple v lans configured, all with wpa2 but I need to put mac filter on only one v lan, so I follow this manual: [URL}. Basically is mac a ACL and applied to sub interface. So, I can associate to the AP, but no one can transmit or receive . If i remove the ACL all works fine.
My config:
access-list 700 permit <maclist> 0000.0000.0000
access-list 700 deny 0000.0000.0000 ffff.ffff.ffff
interface Dot11Radio0.130
[code]....
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Jul 4, 2012
With this customer they have 4 floors with on each floor a Cisco Aironet 1130AG. At the moment they are using WEP as a protection with a really long key. The users find this annoying, but I am more concerned about the security perspective. So I want to implement WPA2 with a shorter key for the people to remember. On one floor, I also want to add a public network when other people want to connect and just need internet access. How to change the current set-up and regarding the security and implementation. If all of the Access Points could work togheter and just be 1 wireless network. I don't know if this is possible and how to do it? For the public network I know there also need to be some changes in VLAN's. The firewall is a cisco ASA5505.
At the moment I am running this configuration: I tried setting up this with the GUI, but it doesn't look like the configuration at the moment is shown in the GUI or maybe I am just looking in the wrong places. [code]
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Mar 22, 2012
I am trying to change wpa2 key on an Aironet 1231g access point. Once I change they key, clients cannot authenticate to the access point unless they either change the password or forget and re add the network on the client device. Is there any way to make the client ask for a new key if the key doesn't match when authenticating?
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Jan 25, 2012
I bought 2 Cisco 1140 series Access Points a couple of months ago. We would like to use PEAP to autheticate with Microsoft IAS Radius Server & Active directory. I cannot find a document which describes how to setup this type of configuration. The only document which is close is how to setup LEAP & with ACS: [URL] I initially followed the 'TechReplublic's Ultimate Guide to Enterprise Wireless LAN Security' which has all the steps to setup Radius server, client side configuration, Certificates and finally a handy excel script to generate a config for the AP. This did not work. [URL] I am now trying to configure the AP using the Web GUI. I can see the network on the client machine but when I try to connect it timesout.
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Oct 7, 2012
On our conference floor, AP 1242AG already exist but I am going to add AP 3602i to increase wireless coverage. . Any issue or concern with this type of setting?
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Apr 5, 2013
is this possible, i need to convert a 1242AG Autonomous back and forth this weekend to use for a quick project for testing. i need to do: take the AP into LWAPP mode (i know how to do this with the aironet utility) take the ap from LWAPP back into a AP mode so i can use it as my access point again. [code]
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Sep 28, 2010
I need to bridge from our office to our shop that is around 800 feet away. Here are the Details
I need the 2.4 ghz antenna for client access (Iphones are not compatiable with 802.11a) The locations are 800 feet away but are line of sight. I need to use the 5ghz antenna for the bridge i have 2 aironet 1242ag's I have 2 2.4 ghz AIR-ANT3213 antennas (planned for client access) I have 2 2.4 ghz AIR-ANT2506 (maybe useless for this)
My problem is that the range of all the listed 5 ghz antennas. None that i can find will bridge 54mb over the 5ghz radio for greater than 170ft
The closest that i can find is AIR-ANT5195. If i put these on both sides and it is outdoors line of sight, will the best i can hope for is functioning and 6mb
Are there options on 5ghz that i am missing.
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Nov 7, 2012
I need a temporary additional broadband connection at home and I was thinking about a bt openzone hotspot connection...
I have a cisco 1242AG access point which can do bridge mode. The BT openzone thing requires a username and password. Is it possible to connect the 1242 in bridge mode to bt openzone?
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Jun 12, 2012
What would be the ramnifactions of using AIR-1242AG-A-K9 (g radios only: no b clients) and AIR-LAP1231G-AK9 (g radios: only no b clients) with AIR- ANT1728 (non diversity antennas) on the WLAN. Some of the APs 1242/ 1231 will be with in line of site of each other.
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Nov 15, 2006
I am new to cisco products and I am trying to setup an aironet 1242ag. I have figured out the ip given to it but, cannot access it with a browser.
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Feb 28, 2013
My question is about the maximum possible transmitting power in a Cisco 1242AG-E-K9.I did an update of my AP on a new ios version and since then, the maximum power for me is limited to 17 dbm. I check this within the console and the "show controllers dot11radio0 | include Power:" command. I thought that I had 20dbm before the update, but unfortunately I can't proof this by myself because I have no AP left with the old firmware.
Is it possible that the upgrade did this? I read about the regulatory domains for the transmitting power. I live in Switzerland, so I thought I could use 100mW if I want to. I read it's not possible to use the 100mW at each speed but I think I should stull be able to select the 20dbm/100mW or am I missing something?
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Oct 20, 2012
I have an issue with a loss of connectivity after 10-15 seconds. I have a Cisco WLC 2504 controlling a Cisco 1242AG AP. The following is the topology.
Wireless Client -> 1242AG (AP) -> Port 3 WLC 2504 -> Port 1 WLC 2504 goes to fa0/2 on 3560. Port fa0/1 goes to ASA5505 (Inside)
All devices are on VLAN 10 10.50.1.0/24. AP is getting DHCP just fine and is associating with the WLC just fine. I connect my laptop to it and it connects just fine.
I then ping the gateway (ASA) 10.50.1.1 or the layer 3 interface on the switch 10.50.1.7 and it is fine for about 10 seconds, then it just dies then comes back in a few minutes and then goes away again. I have looked for duplicate IP's and can find none in any arp table.
It I just ping the controller 10.50.1.20 it is completely stable. I have moved the WLC directly off the ASA5505, moved the switch port, changed cables and the problem follows. I have even moved the AP to be directly off the switch instead of the WLC and the problem still occurs.
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Feb 25, 2013
I have an existing 1242AG AP in a remote location, I have full access to it. I have a new 1242AG that was ordered but the client forgot to order antennas for it. Is there a way I can find out the exact model of antennas that are connected to the in place AP at the remote location??
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May 19, 2011
How can I configure the wireless not to be shown for users,but used by them? On a Cisco 1242AG I mean when someone do a wireless discovery not see my wireless name, but typing the name be able to connect it.
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May 22, 2013
I have an AIR-LAP1242AG-A-K9, serial number FTX1623B0RX. I just need to know how old this unit is. (I haven't attached it to our Cisco account, so I can't open a TAC for it.)
Boot Version 12.4.13.0 IOS Version 12.4(23c)JA5Mini IOS Version 3.0.51.0
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Jun 10, 2010
I have 2 1242AG APs setup with one SSID and no vlans configured. The APs are connected to a switch along with my DHCP server. Clients are able to connect to the SSID but are unable to get an IP from the server. Clients can plug into the switch and get an IP. If I configure a static IP on the wireless card, the client works fine.
Is there something I'm missing on the AP to allow DHCP requests to pass through? IPhelper?
Here is the AP info: AIR-AP1242AG-A-K9 12.4(21a)JA1
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Mar 11, 2012
I have 1242AG. how many clients can be connected to this AP??
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Oct 10, 2011
I'm using a wlan controller with 1242ag converted to lwapp, i'm trying to enable 5.8 but when i change the from local to bridge the lwapp disappear from controller. May be that the firmware does not support mesh !I'm following the 4402 wlan manual at page 641.
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Mar 17, 2013
I have an existing setup of older 1242AG-E-K9 access points with Air-ANT-ANT5160 antennas connected to them. Goal is to replace old AP's with new AIR-LAP1262N-E-K9 model. Question is that can I use only one antenna per radio? Does it work? I know that N-standard requirement is 3 antennas per radio (3 x 2.4G and 3 x 5G) but we need only B/G to work. Plan is to re-use existing AIR-ANT-ANT5160's and order new AIR-ANT2506 antennas. Setup per AP would be 1 x 2.4G and 1 x 5G.
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Apr 18, 2012
i noticed that the 1242AG does not bring up the Radios, when there is a Power Injector connected.I see in the Logs of the AP:
%CDP_PD-2-POWER_LOW: All radios disabled - NEGOTIATED WS-C6509 <Switchport MAC Add>
The Module in the 6500 is a WS-X6348-RJ-45 The Option "Power Injector installed" on the WLC is also enabled, with the MAC Address from the Switchport, but no change.When i disable CDP on the mentioned Switch Port and reload the AP, it comes up and runs fine.
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Dec 2, 2012
I 'm administration an Aironet 1242ag, and we are currently buying an AIR-ANT1728 as antenna. The standard cable for the antenna is 0.9m long, and It could be insufficient for my needs.
So a few questions:
Can i extend it ?
AIR-CAB050LL-R could fit?
The connectors should be 1 male, 1 female?
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Oct 22, 2012
I have two buildings that I'm trying to configure a bridge in between them using 2 1242AG APs.
Building A
PCOFFICE SSID on VLAN 200 Radio G
ROOT_1 SSID on Native VLAN 1 Radio A
Root Bridge
Building B
FDAPC SSID on Native VLAN 1 Radio G
ROOT_1 SSID on Native VLAN 1 Radio A
We are using directional antenna. I know they are lined up properly because I have them both down and in front of me. I'm getting an error on the Building B AP that says " No SSID with VLAN configured. Dot11Radio1 not started." and I'm unable to get this to work. The bridge was working before I added the VLAN and encryption/WPA information for the PCOFFICE and FDAPC SSIDs
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May 13, 2013
I have 2 cisco 1242Ag APs in one building and 7 in other building installed in my infrastructure. All these 9 APs are connected to WLC and all of them are added to default ap group to broadcast all the ssid... But 7 in the second bulding are working properly, but the 2 in the other building are not broadcasting the ssids. I checked the configuration in both APs and WLC as well... All the 9 APs are having the same configuration.
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Dec 10, 2008
we see a strange message in our WLC logs, which occurs quite often (>10 times a day):Decrypt errors occurred for client [MAC-Adress] using WPA key on 802.11b/g interface of AP [MAC-Adress]The MAC-Adresses of the affected clients are varying as well as the APs reporting the error.The clients are Notebooks, Cisco IP-Phones and Nokia-DualBand-Phones.
Even more frequently we see the following message in the log:
%ETHOIP-3-PING_TRANSMIT_FAILED: ethoip_ping.c:227 send_eoip_ping: Failed to tx Ethernet over IP ping rc=5.
We use TKIP as Encryption and EAP-Fast as well as LEAP as Authentication (Cisco ACS).The WLC is an 2106, the APs are 1242AG. We don't recognize any problems placing calls or talking over these phones. It's just these messages in the log that concern me.
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Jul 4, 2011
I have problem setting up wireless repeater using Cisco 1242AG access points. Here is the setup and problem - The location has 2 1242AG APs and a WLC (2206) which will be used by PDAs. One of the AP was converted to Lightweight AP and is wired. This AP is up and working and PDAs are able to connect to it. There is 1 WLAN and it uses Local EAP (LEAP) as authentication. Layer-2 security is configured as WPA/WPA-2 with 802.1X authentication. Under AAA servers Local-EAP is enabled and a profile (with LEAP enabled) is used. Local users are configured for login. As said PDAs are able to connect and it is working without any problem.
WLC (LEAP with local users) -----> LAP ----> Repeater AP
But the 2nd AP has to be configured as repeater was configured to repeater mode (refering to the document) and was placed. The WLC can see a client (with APs MAC address) but it is probing. The AP is still Automonous AP. Also username and password is configured for authentication. But still the radio on the AP is not up and it is in reset state.
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