Mac address spoofing



  • Hello;

    Has anyone tried to change the mac address from the wifi interface (ra0)? I have an Omega2+ and it's being kind of a pain to do it.

    I tried it on the command line for both the wifi and the wired interfaces, using GNU macchanger (installed from the LEDE repos) and I managed to only do it on the wired interface. The output for the command on ra0 is:

    root@Omega-XXXX:~# macchanger -r ra0
    Current MAC:   40:a3:6b:c0:XX:XX (unknown)
    Permanent MAC: 00:00:00:00:00:00 (XEROX CORPORATION)
    [ERROR] Could not change MAC: interface up or insufficient permissions: Not supported
    

    Which is fair, given the interface is up and running. So I found this initscript and I tried running it on boot, to no avail; I even gave up doing it through uci. Then I did some messing around with it to randomize the addresses for all available interfaces on boot:

    #!/bin/sh /etc/rc.common
    
    START=13
    STOP=80
    
    # Mac-spoofer: spoofs the mac addresses on all interfaces
    
    start() {
      # All interfaces, except for the loopback
      for interface in `ip a | grep '^\d' | grep -v '1: lo' | cut -d ' ' -f 2`; do
        ip link set dev $interface down
        macchanger -r $interface
        ip link set dev $interface up
      done
    }
    
    stop() {
      for interface in `ip a | grep '^\d' | grep -v '1: lo' | cut -d ' ' -f 2`; do
        ip link set dev $interface down
        macchanger -p $interface
        ip link set dev $interface up
      done
    }
    
    

    As it turns out, on boot it catches both ra0 and eth0, before the other interfaces are created and bound on them, still while they are both down. eth0 gets a random address every time, but ra0 doesn't:

    root@Omega-XXXX:~# ip link
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN qlen 1000
      link/ether 52:25:a7:76:64:6b brd ff:ff:ff:ff:ff:ff
    3: ra0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br-wlan state UP qlen 1000
      link/ether 40:a3:6b:c0:XX:XX brd ff:ff:ff:ff:ff:ff
    4: br-wlan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
      link/ether 52:25:a7:76:64:6b brd ff:ff:ff:ff:ff:ff
    5: eth0.1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-wlan state UP qlen 1000
      link/ether 52:25:a7:76:64:6b brd ff:ff:ff:ff:ff:ff
    6: apcli0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWNqlen 1000
      link/ether 42:a3:6b:00:XX:XX brd ff:ff:ff:ff:ff:ff
    
    root@Omega-XXXX:~# macchanger -p eth0
    Current MAC:   40:a3:6b:c0:XX:XY (unknown)
    Permanent MAC: 52:25:a7:76:64:6b (unknown)
    [ERROR] Could not change MAC: interface up or insufficient permissions: Resource busy
    

    Has anyone tried it, and found a way around it? Or is it the device/driver that does not support changing the mac address?

    Thanks.


Log in to reply
 

Looks like your connection to Onion Community was lost, please wait while we try to reconnect.