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  1. #1

    Question Different MAC addresses for same card

    Hi friends...I tried to get the MAC address of my only ethernet card eth0 (configured as DHCP). I got different results with the two commands arp and ifconfig.Can anybody explain me the reason and what is my real MAC address??

    Command line:
    [root@localhost ~]# arp -an
    ? ( at 00:17:7C:01:E5:75 [ether] on eth0
    [root@localhost ~]#
    [root@localhost ~]# ifconfig eth0
    eth0      Link encap:Ethernet  HWaddr 00:19:5B:6B:F2:55
              inet addr:  Bcast:  Mask:
              inet6 addr: fe80::219:5bff:fe6b:f255/64 Scope:Link
              UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
              RX packets:3049 errors:0 dropped:0 overruns:0 frame:0
              TX packets:2559 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000
              RX bytes:1638976 (1.5 MiB)  TX bytes:382240 (373.2 KiB)
              Interrupt:9 Base address:0x6c00
    [root@localhost ~]#
    Thanx in advance

  2. #2
    MAC address of your NIC is 00:19:5B:6B:F2:55.
    As you can seen 'arp -en' shows MAC addresses of your neighbours.
    In this case has address 00:17:7C:01:E5:75.

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