MAC Address FF:FF:FF:FF:FF:FF on a Cisco 7920

Hi!
Maybe someone of you can help me about my problem. I have my 7920 that can not authenticate to the CallManager and no signal for wireless is detected. When checking the Mac address I could see that it reflects ff:ff:ff:ff:ff:ff
Can this be fixed? How?
Thank you,
Oscar.

Try upgrading the firmware through the Configuration Utility.
http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7920/3_3/english/administration/guide/7920frm.html

Similar Messages

  • Capturing MAC Addresses from an Access Point AP1131 with SNMP

    Hi!
    I'm trying to use SNMP to track information as to whats connected to
    our access points. The purpose is basic security and auditing in case
    of a problem ( virus, technical problem, etc ). We're already able to
    capture what wired devices are connected, but not the MAC addresses of
    the wireless clients.
    We're employing Cisco Aironet APs 1131, and looking around the MIBs, I found
    one object that has what I want, but it's not accessible.
    cDot11ClientAddress OBJECT-TYPE
    SYNTAX MacAddress
    MAX-ACCESS not-accessible
    STATUS current
    DESCRIPTION
    "The MAC address of the client."
    ::= { cDot11ClientConfigInfoEntry 1 }
    Does any one know another way to get this information via SNMP?
    Thanks U by advance!
    Khay

    Up...anybody?... :(

  • Mac-Address Different format for Authorization on Cisco ISE

    Dear All,
    I have problem with my Cisco ISE,
    This is the design :
    ISE ---- Core Switch ---- 3Com Switch --- PC User
    My Case:
    Authorization is based on Mac-address and Active Directory,
    But user with PC that connect to 3Com swtich is Deny by ISE because the Format Mac-address is different with Cisco,
    Mac-address Cisco format :  XX:XX:XX:XX:XX:XX
    Mac-address 3Com format :  XXXX-XXXX-XXXX
    3Com Switch type is TRICOM 4210 26-PORT.
    Anyone have experience with this? and how change the mac-address format in 3Com so user can authorized by Cisco ISE.
    note:
    authorization based on Active Directory is not problem with 3Com Switch.
    Based on my experience, Different product is different format mac-address, so this case not only for 3Com Switch.
    Thanks,
    Arika Wahyono

    I do not think Cisco will add these vendors to the supported switch matrix because then it would be a support issue that cisco would have to deal with, much like most of the AD issues I experienced when I worked in TAC. Your best bet would be to run the evaluation license instance in a lab and have a 3com switch point against that.
    Other than that I do not recommend upgrading to 1.2 without validating that the new "multi-vendor" MAB support will work on your switch.
    PS- Keep in mind that my comments is just my opinion so you may need to open a TAC case for an official answer.
    Tarik Admani
    *Please rate helpful posts*

  • Mac-Address Locking on ML-1000 for the Cisco 15454

    Does anyone know if you can do mac-address locking on the ML-1000 card on the Cisco 15454. I would like to enter the command "mac-address-table secure", but it does not look like it is possible to do this.
    Thanks,
    Eric

    The command is not supported on the ML-1000 card.

  • How to change MAC address on VPN Adapter - Deterministic Network Enhancer

    Is it possible to change the MAC address 00-05-9A-3C-78-00 on the Cisco VPN Client / Cisco Systems VPN Adapter - Deterministic Enhancer Miniport. (Version 4.6.02.0011)
    Thanks

    I've tried using mac address changeing softeware on it before and it always changed it back when I enable my VPN.
    HTH
    Patrick

  • MAC address flapping on 2 x Cisco 3750 (Stacked)

    Hi All,
    I am having some issue with my connectivity.
    The setup with HP virtual connect (VC) is as below:
    Server A NIC 1 -- VC 1 -- Switch A
                 NIC 2 -- VC 2 -- Switch A
    Server B NIC 1 -- VC 1 -- Switch A
                 NIC 2 -- VC 2 -- Switch A
    The VLAN configuration are done on individual NIC card on the servers and the switchport on Switch A facing the VC connect are all on trunk mode.
    Currently I am seeing MAC address flapping on my Switch. The switches are CISCO 3750 and are being stacked so it appears logically as 1 switch.
    Any idea what might be the problem?
    Below is an output of the flapping on the switch.
    %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xxxx.0637 in vlan 1 is flapping between port Gi2/0/3 and port Gi2/0/5
    %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xxxx.46eb in vlan 1 is flapping between port Gi1/0/5 and port Gi1/0/7
    %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xxxx.661d  in vlan 1 is flapping between port Gi2/0/15 and port Gi2/0/7

    Hi,
    Problem of MAC FLAP could resolve by following methods:.
    Check with the server providers to see if the OS and server platform support 'NIC' Teaming (NIC Bonding).
    FYI - NIC teaming allows users to group two or more physical NICs into a single logical network device called a bond. Once a logical NIC is configured, the virtual machine is not aware of the underlying physical NICs. Packets sent to the logical NIC are dispatched to one of the physical NICs in the bond and packets arriving at any of the physical NICs are automatically directed to the appropriate logical NIC. If one of the underlying physical NICs is broken or its cable has been unplugged, server will detect the fault condition and automatically move traffic to another NIC in the bond.
    Hope that help
    If helpful do rate
    Ganesh.H

  • MAC Address List

    Just a quick question reaally,
    What is the maximum number of Mac addresses the 1130AG can hold?
    Thanks for any help.

    Hi John,
    Are you referring to Mac Filters? If so;
    Configuring and Enabling MAC Address Filters
    MAC address filters allow or disallow the forwarding of unicast and multicast packets either sent from or addressed to specific MAC addresses. You can create a filter that passes traffic to all MAC addresses except those you specify, or you can create a filter that blocks traffic to all MAC addresses except those you specify. You can apply the filters you create to either or both the Ethernet and radio ports and to either or both incoming and outgoing packets.
    Note: Using the CLI, you can configure up to 2,048 MAC addresses for filtering. Using the web-browser interface, however, you can configure only up to 43 MAC addresses for filtering.
    From this doc;
    http://www.cisco.com/en/US/docs/wireless/access_point/12.3_2_JA/configuration/guide/s32filt.html#wp1034897
    Hope this helps!
    Rob

  • Set Bandwidth Priority by MAC Addresses on RV016 is it possible?

    Hi everybody,
    Thank you to take some of your time to read me and maybe answer me.
    I currently have the following network structure, which work fine:
    The only bandwidth management configuration I did in the Cisco E1000 router is to set the QOS, giving high priority to the 5 SIP Phones mac addresses.
    The problem:
    I purchased a Small Business Cisco router RV016 because the company keep expanding so they will add more SIP Phones and PCs.
    In the new router configurations, there is no way to do like I did on the E1000 I just want to be able to set high priority to the SIP Phones mac addresses.
    What happens when I use the new router (RV016) is that, sometime you dial a number and the phone do a busy signal and indicate "Call failed" or sometime people call in and there is only 3 phones ringing.
    I tried port forwarding.. disabling firewall.. SPI.. I tried access rule.. whatever I do doesn't fix the issue.
    When I put the Cisco E1000 back everything goes well.
    Is there something I should know?
    I'm using the latest firmware: RV0XX-v4.1.1.01-sp.bin
    Can't wait to hear from you, thank you
    -Nick

    I'm pretty new to the VOIP.. I didn't install the phones myself and the company who did, changed the admin password on the phones so I can't connect to them(admin/22222). I just sent an email to the company who did install initially the voip system to request for PBX information.
    I'm pretty sure it is an external PBX since I can't locate any piece of hardware that could be it.. Or maybe one of these phones can have a PBX internally is that something possible?
    I'm configurated with only 1 WAN.
    Devices are:
    -5 Aastral SIP Phones
    -5 Computers 1 Laptop
    -2 HP Printer
    -1x switch Asus GX-D1081
    -1x WRT54G (using as switch and wireless)
    Thank you very much for your fast reply Jasbryan.
    EDIT:  Anybody can give me direction to information on how to allow good communication for my VOIP to work correctly with my Cisco RV016 router?
    What method I need to use on rv016 to set bandwidth priority on my phones. Like QoS..I tried bandwidth management type priority. It didn't solve my problem.
    Also I need to know the right way to allow the ports to communicate. there is access rule.. port forwarding.. I'm lost!..
    It is so simple with the E1000.. I just had to activate the QOS and set high priority to the phone mac addresses..I wish we had that option with the RV016

  • MAC Address Limitations

    What is the issue with MAC Address Limitations on the SUPII?

    From: http://www.cisco.com/en/US/partner/products/hw/modules/ps2797/products_data_sheet09186a00800887fd.html
    Media Access Control (MAC) addresses-128K

  • How to make mac address gmail contacts overwrite the ones on my HTC Android phone - I don't want to sync - that makes the phone scramble and overwrite my computer.  I want to remove or correctly overwrite the phone information as I have done with iPad.

    Please help - I am beginning to hate google, my android and gmail.  I have just wasted about 5 hours in a futile attempt to try and get my current Mac contacts list on my computer updated to my phone. I'm not that computer literate but I have looked up about google phone accounts, vCards, backing up contact lists, what SD on phones are, and God know what else.  I have searched the internet and tried all sorts of things and I still have a mac with a now correct contact list (after the iPad contacts scrambled it and I spent ages manually correcting them all) and a phone with an outdated contact list.  If you try and sync them the phone wants to overwrite the computer one just like the iPad did (would it be so **** hard to give you a choice on the phone as to which overwrites which!).  After all the  advice on the internet failed, I got the bright idea to completely delete all the ones on the phone and if it was empty of contacts the computer one could be exported to it.  Not as simple as it sounds.  First I backed up (I think) my computer contacts list. Numerous futile attempts to go through the phone options to globally delete all contacts did not work - they gave a warning message and you got to choose whether to continue or not, I did, and it looked like it might be working as it changed to zero data on the phone, but then they all popped back up again from God knows where from, but without their little added bits like pictures of the people.  So, I tried un- syncing the darn phone from  google and then deleting them globally.  That didn't work either.  I tried deleting them  all again and again and google would crash and not let me do it. It is absolutely ridiculous that this is so damned difficult to do (especially if you are not computer savvy) and that you cannot choose which device overwrites which when syncing. I gave up and ticked sync with Google again (not that it appears to do anything to the phone contact list at all).  So after 5 hours I am back to where I started from, with a phone showing all the same  incorrect contacts (but the pictures are back), which wants to overwrite the computer if I try any sort of sync, and no way to fix them except go into each one manually and try and do it - and how long would that take (and I've already wasted hours and hours fixing scrambled contact lists!).  I think I will do a print out of the computer contact list and just carry it around with me like an address book - so much bloody simpler.  So now I have a headache, am fighting an overwhelming urge to hurl the phone at the wall,  hoping for a heat wave to evaporate icloud things and am wishing I had bought an iPhone instead of the stupid HTC Android.  Can any one offer me any suggestions on how to get rid of the contacts on my phone and replace them with the ones in my mac address list - hopefully after that  they can sync to their hearts content and not stuff everything up again (which was why I unsynced google a while back - because the phone's list kept making stuff ups and scrambling and duplicating my computer contacts list).  Am I the only one on the planet having this problem or is there someone else out there who has had it and solved it.

    Without "pretending" to be yourself on the other phone (change settings) there's nothing else you can do.
    iOS devices are meant to be single user and can't view iCloud.com the same way a Mac or PC can do.
    You need to find a desktop or laptop machine (Mac or PC) to log in at iCloud.

  • I want to reserve a static IP address on my Airport extreme.  What is the difference between reserving by MAC Address and DHCP Client ID?

    I want to understand the differences in the way you can reserve a static address for a device on the network.  I had previously set the device itself to an address and then reserved it with DHCP Client ID, which I thought was just the devices static addresss.  I'm not sure if this was in fact correct or just happend to work.  I know what a MAC address is, but I'm not really sure what the DHCP Client ID is. So it would be great if someone could clarify it, and the difference between reserving address by MAC Address or DHCP Client ID.

    A MAC address is a unique identification consisting of letters and numbers in a form that looks like this:
    xx:xx:xx:xx:xx:xx
    Every network device has a MAC address, which can be found on a label on the bottom or back of the device. Apple calls this the Ethernet ID.
    A DHCP Client ID is an optional name that you can assign to a device. For example, on your Mac....
    Open System Preferences (gear icon on the dock)
    Open Network
    Click on Ethernet
    Click Advanced at the lower right
    You may be able to edit the DHCP Client  ID here....for example.....you could enter MJ500's MacBook in the space provided. That would be the Client ID of your Mac.

  • I have two .mac addresses; how does this work in iCloud?

    This is not about consolidating Apple ID's... I think.
    When I got my first .mac address, I thought I picked a good one at the time. Later on, due to the peculiar spelling, I opted for an additonal (paid) address which I use every day. Now the first one (which is an Apple ID) contains my calendars, contacts, etc. I never use the email portion of it, again because of challenging spelling. The second .mac address (also an Apple ID) is an email only account. This is the email account I use daily.
    When I make the transition to iCloud, I intend to keep my original AppleID (from the pre-.mac days) as my iTunes store ID.
    My question is, what happens with my two other accounts?
    .mac #1 with the contacts and such would move to iCloud and sync everything there as it currently does with MobileMe. Since .mac #2 is an email only account, would I even need to bother moving it to iCloud (if that's even possible), or would I just keep using that as email only using the current mail settings on my iThingys and Mac? Does anyone know if .mac #2 will live on after MobileMe vanishes, or will I loose my daily and coveted .mac email at that time?
    I'm sure Apple has a good reason for not allowing us to just consolidate everything in one place, but I know there are many out there with a similar situation to mine.
    I've spent a good deal of time tonight searching the various threads and can't seem to find an answer to the two .mac email dilemma. My appologies if it's already been discussed.
    To sum up, I have one Apple ID that I use for iTunes and intend to keep as such. I have two .mac addresses which are also Apple ID's; one that syncs with MobileMe and one that is email only. I would like to use iCloud to sync what is currently on MobileMe, AND continue to use the simpler email address that I've been using for years.
    Am I screwed??
    Thanks in advance for your help, and Happy Holidays to all!!

    Migrate the account which contains your calendars, contacts etc. first, at http://me.com/move and set it up on your Mac and devices.
    http://www.apple.com/icloud/setup/mac.html
    Now migrate the email-only account in the same way. On a Mac you can add it in System Preferences>Mail, Contacts & Calendars - it won't sync anything but will be added to the accounts in Mail where you can then use the email in the normal way.
    I don't know what the equivalent process on an iOS device is; very likely you need to add it as an account in the Mail app.

  • How to find a workstation object by ip or mac address?

    Hi gang.
    I'm trying to search for a workstation object by mac address or by IP
    address. So far, I'm not able to find the correct attributes to do so.
    Can anybody point me in the right direction to find a workstation by either
    IP or mac?
    thanks!
    John

    [email protected] wrote:
    >
    > Hi gang.
    >
    > I'm trying to search for a workstation object by mac address or by IP
    > address. So far, I'm not able to find the correct attributes to do so.
    >
    > Can anybody point me in the right direction to find a workstation by either
    > IP or mac?
    In ConsoleOne find, advanced, look for ZEN:INV IP Address attribute
    -sk

  • How do I add my phone's Wi-Fi Mac address to my home server so that I can use my home Wi-Fi with my phone?

    Hello. I am using an Android cell phone and, though the phone sees my home server name and accepts my password, it won't connect. I understand that I may have to add my phone's Wi-Fi Mac address to my home server in order for it to allow my phone access, but I have no idea how I might do that. Could someone help me with this? Thank you.

    Tdalso wrote:
    How do I add a phone number so I can use either my US or Canadian number (depending on where I am) with iMessage and Facetime on both my iPhones?
    You need to log out of iMessage and Facetime, make sure your number is correct in Settings/General/About, then log back in again to send a new activation request.

  • I need to change the MAC Address for Airport on MacBook

    I have a specific need to change my son's Airport MAC address as his school requires the use of USB network cards that aren't compatible with MACs. These cards are needed because the school's router uses MAC address filtering.
    Before we upgraded his Mac to Snow Leopard, we were able to change the MAC address to the MAC address of the useless dongal the school supplied. We basically created an AppleScript program that ran the "sudo ifconfig en1 ether xx:xx:xx:xx:xx:xx" and all was good.
    This command no longer works for changing the MAC address. We tried it as root user as well and by typing it into the terminal window as root. After running the command, we can run "ifconfig en1" and it does display the new mac address but when we turn the airport on and try to connect, it just hangs and won't connect.
    Our other non-Snow Leopard still works fine after running the commands so I'm guessing Apple disabled this functionality. It's hardly a security issue by being able to change your mac addres.
    Is there a new way to accomplish this? I've searched everywhere.
    Thanks!

    Would an easier solution be to provide the school's IT admin with your mac address and have it added? If they can add a block of mac addresses for the usb dongles, they can add more for machines that cannot use the dongle.
    Also: "It's hardly a security issue by being able to change your mac address."
    While it may not be a security issue for your machine, it is a security for the school network who is using mac address filtering as hopefully only one part of their wireless security.
    That being said, have you read this?
    http://osxdaily.com/2008/01/17/how-to-spoof-your-mac-address-in-mac-os-x/

Maybe you are looking for

  • How they can say it's fine when there are so many problems?

    I've had my Macbook barely a month, but I've taken it to the store twice for diagnostics, called Apple.com 3 times, erased and reloaded everything, and still have numerous issues despite being told 'it all checks out' and a 'replacement is not indica

  • Safari search history across linked devices

    My 2 sons and I have 3 devices all linked by the one apple ID. I have noticed that I can see on my ipad what open tabs my son has on safari on his iPod. Can he also see what I am browsing on the Internet. I really don't want them reading some of the

  • A possible fix for the email "large attachment cra...

    08, v1507, FP2, UK product code (hacked from original amazon.co.uk Malaysian product code). I've just started Nokia Suite to see if anything new comes up. No sign of 1508 but one "really interesting" fix for the email app, specifically mentioning the

  • Printing return address labels

    how do i print return address labels of the same address from address book? i can get it to print one, but i need a whole page of labels to use as return address stickers. Thanks for any tips you can offer.

  • If I upgrade to mountain lion can I uninstall it if I don't like it

    If I upgrade from Lion to Mountain Lion and I don't like Mountain Lion, can I uninstall Mountain Lion and be asured that my IOS Lion will function and be ok?