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how to restore original mac adresses?

Discussion in 'Tomato Firmware' started by hakowy, Dec 8, 2011.

  1. hakowy

    hakowy Networkin' Nut Member

    Hello i don't know how , i got strange mac address for lan 00:FF:FF:FF:FF:FF.
    How to restore default mac addresses for router, tried nvram erase and hard reset but didn't work.

  2. pharma

    pharma Network Guru Member

    If you look on Advanced --> Mac Address page you will see 3 options: Default, Random, or Clone PC. Chose option you want and go down to bottom of page and click "Save". You should see MAC address change -- if you don't then try re-flashing firmware on your router.

    Edit: Sorry -- I just saw you said "Lan" so this might not work. I would just re-flash your router and reload settings manually.

  3. hakowy

    hakowy Networkin' Nut Member

    Re-flashing router means that i should go in section "Upgrade Firmware" and put there tomato firmware? I have tried with upgrading to another build, and it didn't work.
  4. pharma

    pharma Network Guru Member

  5. hakowy

    hakowy Networkin' Nut Member

    I reflashed 5th time, and it didn't help, i got as default macs:

    HOW TO FIX IT????
  6. pharma

    pharma Network Guru Member

    Google Internet (not Tomato forum) on "how to restore original mac address on LAN" turned up many posts, but maybe one below will help.
  7. hakowy

    hakowy Networkin' Nut Member

    IS it a JOKE? I got these macs on router, not computer...... And this is related to tomato, so why you tell to google it instead of asking there..?
  8. pharma

    pharma Network Guru Member

    In your original post in Toastman thread you said "Can anyone help, how to get original Mac address in router for LAN, i got strange mac".

    Do you know where the MAC address for LAN is assigned? Maybe you should try flashing original router firmware and see if you have same problem. If you do it is not Tomato related.
  9. shibby20

    shibby20 Network Guru Member

    how to set lan mac?

    nvram set lan_hwaddr="00:00:00:00:00:AA"
    nvram commit

    On router`s sticker you will find MAC adress of LAN. ex 00:11:22:33:44:55

    WAN mac is LAN +1 well 00:11:22:33:44:56

    Wireless mac is LAN +2 well 00:11:22:33:44:57

    WAN and Wireless mac you can set via gui advanced -> mac address.
    eahm likes this.
  10. mstombs

    mstombs Network Guru Member

    What exact make/model of Router?

    The default MAC addresses and other vars are normally stored inside the bootloader CFE, so they are restored after a thorough reset to defaults which wipes the nvram.

    If you have changed the CFE (risky without working JTAG) there are tools (or Hex-editor) to update the defaults before or during uploading.
    pharma likes this.

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