The first byte of the MAC address cannot be bit odd?

Similar Questions

• Analyze the Mac address with the regular expression matching

  Hello world

  I have a problem with the function of regular expression matching,

  I try to analyse the response both a query arp - a 192.168.0.15 to retrieve the MAC address of the remote IP address, I used the following regular expression: ^ ([0-9a-fA-F]{2}[:-]){5}([0-9a-fA-F]{2})$

  I wonder why should I do a subset of the first string to extract only the part of the MAC address. The regular Expression function is not able to recognize the regular expression directly in the middle of a string?

  I only works when I extracted the subset of tring right as in the picture below.

  Thanks for your replies.

  Get rid of the "^" at the beginning of your regular expression. You are ordering him to find the model at the beginning of the string.

• TZO refuse my request for accommodation once I insert the MAC address of my camera!

  I tried to register with TZO for the first year, which comes for free! After I insert number of MAC address of my camera, I get an error message on the site that says: -.

  "

  There is an error on the previous screen.

  A trial has already been created for this Mac address. Please enter the Mac address with care.

  Click back to make corrections

  ".

  I never tried to register with TZO before yesterday. Despite having bought the camera in January this year. There is nowhere I can see the TZO site to communicate with them, but in any case it is the Linksys who sold me the service. Anyone have any ideas on how to solve this problem?

  All responses welcome.

  Thank you.

  MB

  If you go to the TZO site, they have a page about us, check for contact information.

  Click on the link below and that you'll get there if you do not

  TZO About Us Page

• Why is the MAC address Clone?

  When I disabled it Clone MAC address I lost access to the internet.

  Does anyone know why MAC address Clone is necessary and what it does?

  Clone MAC address changes the MAC address of the router on the internet port.

  You can use the function of the cloning MAC address to clone the MAC address of a computer if you used before your computer directly to the modem.

  Some ISPS (especially cable ISPS) only the customers to have an active internet connection at any time. To do this, check the MAC address, that is, they remember the MAC address that accessible line via the modem and lock the connection to this MAC address.

  If you test your internet connection directly with your PC first and then connect the router the router can not get an internet connection because the row is locked to the PC's MAC address. Now if clone you the address MAC from the PC on the router the router "pretended" to be PC and the ISP will accept traffic again.

  Usually, simply reset or turn on the modem to reset the lock again. Sometimes, you have to turn off the modem for a couple of hours (for example, through the night) after a few hours of inactivity the ISP removes the lock again. Sometimes call the ISP to remove the lock, but it's not very often.

  So basically, generally useless clone MAC address at all because you could accomplish the same thing by resetting the modem or it turned off for a few minutes. If you connect the router to the modem, ISP learns the MAC address of the router and it gets working internet connection. (Of course remember, that once a computer directly connected to the modem would not get active internet connection unless you change the MAC address of the computer to the MAC address of the router).

  But the function is useful if you do not want to. You simply set the MAC address of the connected device before, and you get a working internet connection.

• Advantage of the MAC address cloning?

  What is the advantage of the MAC address cloning?

  There is no "advantage" to clone the MAC address. The only benefit would be to have internet or not.

  In many cases, it is absolutely useless to use the clone MAC address. If you have an internet connection through your router, then there is no need to use the MAC address cloning feature.

  Only when you find that you have a working internet connection on a computer directly on your modem, but not when you connect through the router (or another computer directly into the modem) then it is necessary to use the MAC address cloning feature.

  Usually, this is only the case with cable TV ISP. They allow you to have an active internet connection single at any time. They do this by remembering the MAC address which connects via a specific modem. If you connect first a computer for testing directly to your modem, you will have an internet connection. Now if you connect a different device to your modem it does not work is because the ISP has always blocked the internet connection, the MAC address of the first computer.

  How to remove the lock depends on the ISP and the modem. Sometimes just reset the modem or to turn everything off. Sometimes you turn off everything for a few hours and after that the first connection device is the one with the internet connection (i.e. make sure you connect the router then...) If you want to know exactly how your ISP to do this, you need to ask...

  The simple solution is to use the MAC address cloning feature. The router "clones" the MAC address of the first computer, i.e. it basically pretends to this computer. The MAC address is accepted by the ISP and is immediately authorized to the network. You have a working internet connection on the first computer, either through the router directly because both use the same MAC address. (This is no problem on the router because the MAC address is used on the internet port only...).

  Of course, remember all this. If at some point later, you connect another computer directly to the modem (for example you have connection problems and want to know what is wrong) you can "lock" in a different MAC address for your connection and you will have to wait to find the connection to a different device.

  But once again: there is absolutely no need to use the clone if you have an internet connection through your router.

• Assign a static IP address via DHCP based on the Mac address of the virtual machine

  Hi all

  It is especially a feature request, as I'm sure that it is not currently possible to do what I want to do...

  I would like to be able to assign static IP addresses to VM without having to manually configure the network settings of the virtual machine directly. I want to be able to do it from the DHCP settings in the virtual network Editor.

  Most of the routers DHCP allow this. They give an IP address through DHCP based on the MAC address of the client. This means that the customer is concerned that he receives a regular IP DHCP address, but it is never change.

  DHCP is the default option for all OS this makes things much easier to manage, as IP addresses is assigned in the same way, in one place for all DHCP clients, regardless of the client operating system, and without having to manually keep track of which the IP is assigned to which customers etc..

  Also AFAIK at least for Ubuntu, you cannot assign a static IP address without having to also statically assign to the DNS server. It is only the IP address I need to be static, so I prefer not to have to worry about manually assign the DNS server.

  I can just kind of fudge making the really long DHCP lease duration, but the maximum is 99 days only, so finally addresses are going to change, that would mean a whole bunch of reconfiguration for VM services, etc..

  Does anyone know if the workstation 9 has this ability? I am currently on version 8, but I would probably upgrade this function only if she can do it.

  If there is no way to do what I want to directly through the virtual network Editor, can anyone recommend a way to do this, perhaps using Guest only network and then, by running a kind of services to the 3rd party NAT and DHCP on the host?

  Thank you

  Eugene

  There is no GUI option to get what you are looking for, but you can do it manually. Please take a look at Re: assign a static IP to guest with network adapter NAT Virt? where I posted an example.

  André

• ESX uses network adapter with the mac address that is different than virtual connect reports

  Hi all

  Our ESX environment consists of HP C7000 enclosure, virtual connect 1 gb ethernet with a mixture of BL480c and BL460c. We just bought some new BL460c G7 with NIC NC553i to replace some of the oldest BL480c. We have configured Virtual Connect to assign mac addresses. In vc management consoleI see the addresses assigned to the server, but when I start the server displays a different mac address for nic #2 that vc does. NIC #1 has the same mac address of console management vc and in the server BIOS. When I install ESX also sees the 'wrong' for #2 nic mac address. According to vmware nic #2 has not any network connected to what should be if it was really nic #2 (according to the vc management console).

  When I look at the mac addresses in the BIOS none of the network interface card have the mac address assigned by vc. VC firmware is 3.01. I have attached the photos I see information in the management of VC and BIOS console. Someone at - it for clues to what is happening and how can I solve it? Thanks in advance.

  Kind regards

  GB

  Please refer to:

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1001167

  Note:   The ESX host uses following addresses starting with 00:50:56 (as opposed to the address embedded in the interface itself).

  To determine the MAC address of the interface Board of the ESX host, run the command:

  # ifconfig | grep-i hw

  The output looks like:

  vswif0 Link encap HWaddr 00:50:56:41:5 A: 59

  The MAC address is in the first line after HWaddr.  In this example, the MAC address is 00:50:56:41:5 has: 59.

  Note:   The ESX host uses following addresses starting with 00:50:56 (as opposed to the address embedded in the interface itself).

  You can also review the output information and the esxcfg-NICS - l order MAC addresses.

• Determining the MAC address generated by VMX

  How the MAC addresses are generated when a new virtual machine is created/cloned using ESX and especially LabManager?

  Is the set of predictable, algorithmic MACs potential, or is it completely random?

  The use case, is that I need to know all of the potentially valid MACs which can be assigned to any given virtual computer.   It is calculated from the CMA of the physical host?  Is it still a finite set?

  Any idea is appreciated.  Thank you

  Generated by the Lab Manager MAC address will be in the following format:

  00:50:56:XX:NN:NN

  Where XX is the installation ID of your Lab Manager you will find on the General Settings page. Remember that you must convert to the spell. Example, if your installation ID is 41, so all your MAC address will look like 00:50:56:29:NN:NN.

  NN:nn is the unique number assigned to the network adapter. each virtual computer

  So let's say that I log in the laboratory Manager (whose installation ID is 41) and create a virtual machine with two network cards. It can assign these MAC addresses to my two network adapters:

  00:50:56:29:00:60

  00:50:56:29:00:61

  Now say I have add a new network adapter. The MAC address assigned to the third NIC will be 00:50:56:29:00:62.

  Now let's say I delete the first NETWORK card MAC address is 00:50:56:29:00:60. Then I go and add a new network adapter. MAC address will be 00:50:56:29:00:63. The MAC address that was previously removed won't get recycled, at least not immediately.

  In order to predict the MAC address is doable as long as you are aware of all MAC addresses in use on your system.

• How to change the mac address with a mac myself?

  Hello

  I need help to change the MAC address of one of my VM in a configuration.

  I need it because I need to do some testing on a program and the program's tie to the MAC address.

  I see how to reset the MAC, but not how set one I want... could someone help me with this.

  Lafa91

  BTW I have french speaking first of all sorry in advance for my bad English.

  Lafa im not very familiar with labmana. but the alternative is that you change your MAC address in the guest NETWORK adapter settings OS

• Old PITA bread - change the MAC address in VMware Workstation 6.5?

  Some versions of VMware Workstation enabled to manually set the MAC address of the virtual card.

  This possibility has been changed for several reasons.

  My personal opinion is clear.  A virtual machine needs to reflect as much as possible a hardware machine.

  VMware Workstation you can not change the MAC address, or you are related to a limited possibility, were the first hex addresses are fixed,

  so that it shows on the outside, it is a virtual machine.  VMware response is, you must run the server edition.  Well...

  Currently, I have seen, that the recent version of Virtual Box allows you to manually enter the MAC address

  for the virtual Interfaces based on Intel NIC. You can enter any MAC address, including existing material, NIC Intel MAC.

  So my opinion, the possibility of lock-out to COMPLETELY change the mac address of the virtual machine,

  must be activated again for all versions of VMware, as it is the option with other software.

  JurgenD wrote:

  Some versions of VMware Workstation enabled to manually set the MAC address of the virtual card.

  This possibility has been changed for several reasons.

  HM?  As far as I know, we have not added any restrictions.  We do not provide a user interface for it, but manually modifying the .vmx file and change ethernet0.addressType and ethernet0.address to a MAC from another provider address seem to work for me.

  http://sanbarrow.com/VMX/VMX-network-advanced.html#Mac

  I don't think the static MAC addresses are actually limited to the 00:50:56 range.

• where can I find the mac address for Airport Extreme

  just bought a new Airport Extreme 802.11ac and I don't know here to find the MAC ADDRESS. Can someone tell me where to look. I have the model and serial number, but can not find the MAC ADDRESS.

  Is the AirPort Extreme, set up and operation right now... even if he could not have an Internet connection?

  If Yes... Open the AirPort on your Mac utility... (Finder > Applications > utilities > AirPort Utility)

  Hold down the option key on your Mac when you double-click on the image of the AirPort Extreme

  The next page will display a summary of the parameters

  The AirPort Extreme has done 3 different MAC addresses... Ethernet, WiFi 2.4 GHz and 5 GHz WiFi.   If your AirPort Extreme is connected to a modem by an Ethernet cable, then the Ethernet ID is the MAC address.

  If the AirPort Extreme has not set up yet at all...

  Open AirPort Utility as above, and then click the file menu in the upper left corner of the screen next to the Apple icon

  Click on configure the other

  For address, enter 10.0.1.1

  A password is normally not necessary, but if you are prompted for a password, use the word

  public

  Click OK, the settings summary page is displayed.  In most cases, given that the AirPort Extreme connects to a modem via an Ethernet connection, you want to use the Ethernet ID as the MAC address.

  If you are still experiencing difficulties, you have 90 days of support Apple phone. Call them and maybe they can explain why that should be a very simple task is so difficult.

  Contact - Support official Apple

• The printer receives do not all data. It is caused by the MAC address filtering.

  How can I solve this problem.

  The printer attempted to join the network but does not receive any data.  This may be caused by the MAC address filtering. If MAC address filtering is enabled and you want to keep enabled, add the MAC address of your printer in the list of devices allowed for your wireless access point or router before continuing.

  HP Officejet 4500 - G510n wireless all-in-one printer

  Not at all use MAC filtering.  Make sure it is off in your router.

• Determine the MAC address of the LAN knowing that the model and serial number

  Laptop Toshiba SN 96592614 G

  Is it possible to determine the MAC address of the network card, knowing that the model and the serial number of your laptop?

  How to enter the Toshiba addicts.

  I saw you using Toshiba unit details page with the serial posted Qosmio F30-113 offered in Russia.

  Your laptop is stolen or what?

• WLAN is missing the MAC address and can not use WiFi

  After an important virus corrupt my system, I got everything running except internet Wifi access.

  The configfree detects the unit, Wireless 2200BG, which is enabled and the latest driver downloaded from Intel, but he said nothing to the MAC address.

  IPCONFIG displays the wifi MAC address and loading upward it says wireless networks detected but it can not always connect.

  Configfree using I get error message c-15, c-16, c-16.

  I can hard wire to the internet using the LAN.

  IM using XP Home

  Ive took the wireless card, reinstalled, deleted, and updated.

  Any help would be appreciated

  Hello

  Have you checked the TCP/IP protocol settings?
  Do this!

  The settings are located in:
  Network connections-> network connection WLan-> properties-> Protocol TCP/IP-> properties

  There you have to make sure that settings such as; obtain an IP address automatically, get the DNS should automatically be marked!

  PS: The router must has disabled the mac address filtering!

• Can I get the MAC address for my lost iPad?

  I think I left my iPad Pro in the street today while loading and led away.  When I realized it, I rolled back, but he had disappeared.

  It's a Wifi model only, so find my iPhone will not be much help.  However, my local ISP is a service where you can register the MAC address of the device and it uses one of the many public access tasks automatically, then in this case I find my iPhone could help.

  Is there a way to determine MAC address the iPad when I don't?  Perhaps through iTunes?  I checked the box, but only the serial number is in the list.

  Help!

  Lol sorry