LEAP and Broadcast Key Rotation

If Cisco LEAP is enabled on APs (with other forms of authentication disabled), is it still necessary to enter a WEP key on the AP (for encrypting broadcast/multicast traffic) if broadcast key rotation is enabled?

As soon as you enable Bkey rotation and if you go to the security page you will
see a key is generated for you , so you don't need to enter manually if you turn on Bkey . Remember Bkey rotation breaks wep only client

Similar Messages

  • LEAP and Session Key

    With LEAP, a session key is used. Cisco docs point out, that after the authentication phase, the session key is distributed from the RADIUS Server to the AP and Client.
    Does this mean, that the session key is transmitted in cleartext?
    I would be very happy to have an answer or doc, which offers an answer to my question.
    Thanks in advance
    Edgar

    LEAP is based on symetric keys which are generated on the RADIUS Server and the Client. The Client and Server do authentication using MS-CHAP which uses a U/P. The password is not sent over the network instead a hash key is sent. MSCHAP hashes are known to be volnurable to dictionary attacks. (If I remember correctly LEAP supports mutual auth but I forget how the client authenticates the server). If successfull both the client and the server generate the same WEP key based on the password and other clear text values. The server sends the key to the AP. This transfer is over a wired network but is encrypted. When LEAP is setup, a shared secret must be configured on the RADIUS server and the AP. This secret is used to encrypt the keys passed between the Server and AP. LEAP will also make sure that the WEP keys are rotated.
    Serge

  • WPA Key Rotation Question

    Hi All,
    In an AP, the broadcast-key change <value> command tells the AP how often to rotate the WPA key.  My question: How do clients remain connected to the Wireless LAN when the key rotates?  If the client authenticates (via Radius in my example below), then I would think the key challenge would need to be met. However, if in 5 minutes the key rotates, for example, isn't the client going to lose connection since the challenge value is now different?  The only thing I can think of is that Radius handles this dynamically once a client is authenticated, thus avoiding any disruption.  Is this correct?
    Here is my config, if interested:
    aaa new-model
    aaa group server radius employee-clients
    server 10.255.255.250 auth-port 1645 acct-port 1646
    aaa authentication login console local
    aaa authentication login net-admin local
    aaa authentication login eap_methods group employee-clients
    aaa authorization exec default local
    aaa session-id common
    dot11 ssid WLAN-Local
       vlan 20
       authentication open eap eap_methods
       authentication network-eap eap_methods
       authentication key-management wpa
    interface Dot11Radio0
    no ip address
    no ip route-cache
    encryption vlan 20 mode ciphers aes-ccm
    broadcast-key vlan 1 change 300
    radius-server host 10.255.255.250 auth-port 1645 acct-port 1646 key <key>

    All dot1x clients have a unique key but share a seperate broadcast key that is derived through the dot1x process. To rotate that key use this command ( broadcast-key vlan # change #) on the radio interface. . but the WPA cypher key which keeps on changing after some interval is to encrypt the data with different differnt keys so that it wil be difficult to be cracked/decrypt and not for reauthentication of clients.
    http://www.cisco.com/en/US/docs/routers/access/1800/1801/software/configuration/guide/wireless.pdf

  • I cann't typing letter P and backspace key

    is anyone having same problem?
    i can type any letter except letter P and backspace key.
    it was work yesterday.I reseted whole system but still same....should i take thi to appl store? i stil have a warranty.......
    please tell me the solution if sombody knows...please

    Hi,
    Does the issue occur when using all applications?
    Do you see the same issue when you rotate the iPhone?
    This article: http://support.apple.com/kb/TS2802#faq5 provides tips for issues with the display not responding to touch.
    You can try restoring the iPhone and setting it up as a new phone. This would rule out issues with the iPhone software and backup.
    If you restore as new, you may want to archive the backups as mentioned in this article: http://support.apple.com/kb/HT1766
    -Jason

  • X230 bad quality keyboards - slanted, loose and bent keys

    Hi folks, got recently a brand new X230 - so far, I'm quite happy with it except for the keyboard. The cursor keys on the first keyboard I got were slanted upwards on their left edge, as if the spring mechanic beneath them were aligned incorrectly, not right in size. The keys neither did fit entirely correctly and came loose. Then, after phoning with the support twice, sending pictures and arguing for a while, I got a new keyboard. Result: Quite the same lousy quality again: Cursor keys are slanted upwards on their left side (which is very irritating) very much like with the original keyboard, but this time they are at least not loose. Instead, the F9 key is now on its lower left edge bent upwards as if it was forced out of its mold when it was still hot and flexible - which looks pretty irritating, not to say broken. Technically, it is not loose, but it is only held down on three instead of four points, the lower left corner makes no contact to the mechanic beneath. Gaps between the keys are not aligned and irregular, and too close between F9 and F8 which might have caused this flaw during production. Moreover, ESC and DEL key are slightly tilted out of alignment (rotated inwards), probably also by forcing them out of their mold too early. Just saw a couple of Lenovo notebooks elsewhere (W-series IIRC) with the same keyboard, but good quality, so reasonably quality keyboards should at least exist in some place. I really don't want to argue with support anymore - they keep telling me it's only "an optical flaw". But folks, if I spend >1000€ for a notebook, I prefer "good quality", and not something that looks as if I found it in the grocery store next corner. Is there anything else to do? I'm tired of fighting with the support.

    The older aluminum wired keyboards you have probably won't work with the newer Macs you have as these keyboards have a different version number.
    Apple keeps revising these wired aluminum models and the older versions, at some point, do not work with new or newer Macs.
    There is really no fixing these. They either work or they don't
    Are you asking for a better Apple replacement keyboard?
    Here is the Creme de la Creme of Apple replacement keyboards.
    http://www.matias.ca/products/
    Or look at Kensington or Macally for good Apple replacement input devices.

  • IPhone 4 screen and keyboard wont rotate

    My iPhone 4 screen won't rotate in Messages. The screen wont rotate and the keyboard doesn't rotate either. It works fine for my other apps but it just doesn't work in Messages. It used to work and then it stopped. I've tried double clicking on the menu key and checking if rotating function is unlocked and it is.
    How do I fix this?

    It's not a problem with the gyroscope if it works in other apps. Try a simple reset. Hold the home and power buttons at the same time until the Apple logo appears.

  • LEAP and WEP

    Can I use Leap and wep on the same access point

    An answer to your question is not as simple as you might think.
    LEAP does not require a static WEP key to be set on the client, and there is no reason to run WEP and LEAP authentication at the same time unless:
    -you are migrating your network from open/shared authentication, used a WEP key at one time and are migrating users over to LEAP one at a time.
    In the above case, you would technically be running LEAP and WEP on the same access point, but users would only be authenticated by one or the other. Users will not be authenticated by LEAP and static WEP at the same time.
    I did this during our migration to LEAP from open/WEP based authentication and it worked beautifully. Once LEAP was up and running, users no longer had to use static WEP keys on the client side.
    Also, the awesome thing about LEAP is that it uses dynamic WEP keys which are session specific, but that is another paragraph or two. Just got to cisco.com and search for "dynamic wep".
    Good luck to you.
    Kevin

  • My cat jumped up on the keyboard and the screen rotated, how do I correct this?

    My cat jumped up on my keyboard and the screen rotated. I've searched but I can't find out to undo this so the screen is in the normal position again.

    Hi dscamp,
    I don't think this is a Firefox issue, but the keyboard shortcut is Ctrl+Alt+[Arrow Key]. Ctrl+Alt+Up should put your monitor back in the proper orientation.
    Hopefully this helps!

  • Remote System and Remote Key Mapping at a glance

    Hi,
    I want to discuss the concept of Remote System and Remote Key Mapping.
    Remote System is a logical system which is defined in MDM Console for a MDM Repository.
    We can define key mapping enabled at each table level.
    The key mapping is used to distinguish records at Data Manager after running the Data Import.
    Now 1 record can have 1 remote system with two different keys but two different records cannot have same remote system with same remote key. So, Remote key is an unique identifier for record for any remote system for each individual records.
    Now whenever we import data from a Remote System, the remote system and remote key are mapped for each individual records. Usually all records have different remote keys.
    Now, when syndicating back the record with default remote key is updated in the remote system that is sent by xml file format.
    If same record is updated two times from a same remote system, the remote key will be different and the record which is latest contains highest remote key.
    Now, I have to look at Data Syndication and Remote key.
    I have not done Data Syndication but my concept tell if there is duplicate record with same remote system but different remote keys both will be syndicated back. But if same record have two remote keys for same remote system then only the default remote key is syndicated back.
    Regards
    Kaushik Banerjee

    You are right Kaushik,
    I have not done Data Syndication but my concept tell if there is duplicate record with same remote system but different remote keys both will be syndicated back.
    Yes, but if they are duplicate, they needs to be merged.
    But if same record have two remote keys for same remote system then only the default remote key is syndicated back.
    This is after merging. So whichever remote key has tick mark in key mapping option(default) , it will be syndicated back.
    Pls refer to these links for better understanding.
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/80eb6ea5-2a2f-2b10-f68e-bf735a45705f
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/uuid/7051c376-f939-2b10-7da1-c4f8f9eecc8c%0c
    Hope this helps,
    + An

  • Diff b/w primary key and unique key?

    what is the diff b/w primary key and unique key?

    Hi,
    With respect to functionality both are same.
    But in ABAP we only have Primary key for the Database tables declared in the Data Dictionary.
    Unique is generally is the term used with declaring key's for internal tables.
    Both primary and Unique keys can identify one record of a table.
    Regards,
    Sesh

  • What is the diffrence  between "Key to Select" and "Selected Key" while creating Radio  Buttons?

    While creating radio buttons there is a confusion regarding two properties "Key to Select" and "Selected Key".Can anybody explain it with example?
    Thanks,
    Vimal

    Hi Vimal,
    Please find my explanation as below
    Key to Select: This is the unique key for each radio button to identify which one is selected
    Selected Key: This holds the "KEY" of selected radio button
    Example:
       Let us say we have 2 radio buttons : Male & Female
         Create a context attribute SELECTED_KEY of type STRING.
         Create an action ON_SELECT for radio button select event
         Now,
         the properties for "MALE" radio button as below
              KEY_TO_SELECT = 'M'
              SELECTED_KEY = "bind to the context attribute SELECTED_KEY
              OnSelect = 'ON_SELECT'.
         The properties for 'Female" radio button as below
              KEY_TO_SELECT = 'F'
              SELECTED_KEY = "bind to the context attribute SELECTED_KEY
              OnSelect = 'ON_SELECT'.
    If we select radio button 'Male', we get the key as 'M' and for 'Female' radio button 'F'.
    check inside the event handler method ONACTIONON_SELECT, you get the 'KEY' of selected radio button.
    So, the context attribute 'SELECTED_KEY'  gets filled with the key of selected radio button
    Hope this helps you in distinguishing the 'KEY TO SELECT' & 'SELECTED KEY' .
    Regards,
    Rama

  • What is the diffrence between multicasting and broadcasting?

    hi friends
    What is the diffrence between multicasting and broadcasting?
    i'm bit confused in multicasting and broadcasting.

    Broadcasts go everywhere within a range determined by the sender.
    Broadcasting is deprecated and unliikely to go beyond the nearest router.
    Multicasts go everywhere where receivers have declared they are present.
    Multicast can be implemented beyond routers in a WAN which you control but ISP routers generally don't support it.

  • Buttons and enter key problem

    hello,
    there are a few projects of enterprise quality which I am developing in java swing. I found out through research that many or rather most people involved with java believe that swing is ready for enterprise class robust desktop applications.
    so I as the team leador am starting my new projects in java swing.
    I personally find that the amount of java libraries present provide a rich set of functionality and it gives big mussle power to the developers.
    I am only concerned about one problem which many of you might have solved.
    I find that I have to hit the space bar instead of enter key to fire an action. in languages like vb I can press enter key to fire the click events. specially in menu items I certainly don't expect my clients to press the spacebar. besides there are many people who are so used to the keyboard and enter key in particular that it will be hard or rather next to impossible to change their habbits.
    how can I make the menu items work with the enter key. I mean do I need to create the code for keypress events every time I also create an action performed method? or is there a way where I can do it without extra coding.
    it is just that I don't want to right extra code for enter key along with click events.
    one more important note.
    I am a blind person and I use the access bridge technology of java.
    so when I am involved in coding, I use the same.
    so may be my problem isn't a problem in the first place.
    kindly provide me some help
    thanks
    Krishnakant.

    The enter-key works on menu-items in all my applications. It did so since I started with java few years ago.
    Maybe some other problem (OS-specific) ?

  • Difference between Primary Key and Unique Key with NOT NULL constraint

    As both can be referred to another table.
    Apart from the difference that Primary Key can be only 1 and Unique keys can be multiple,
    is there any difference?
    Like in terms of type of Index?

    PARAG_C wrote:
    As both can be referred to another table.
    Apart from the difference that Primary Key can be only 1 and Unique keys can be multiple,
    is there any difference?
    Like in terms of type of Index?Technically there is almost no difference. Logically the two are often used for slightly different concepts.
    The PK (and with it the index) is often an ID column filled by a seqeunce. This key can then be refenced by foreign key constraints on other tables. it is very useful to have this as a meaningless technical construct. Because then the chance that such a ID needs to be changed is extremly slim.
    The UK (and with it the index) is often one or several columns that represent the logical key for the entity. Foreign key constriants should not point to this. THe chance that this attribute will be changed at some point in time is way higher then for a meaningless number (ID).

  • Difference between PRIMARY KEY and UNIQUE KEY with NOT NULL

    What is the difference between PRIMARY KEY and UNIQUE KEY with NOT NULL constraint?
    Message was edited by:
    Nilesh Hole

    Answer for the master!!!
    http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:8743855576462
    Thanks,
    Karthick

Maybe you are looking for