Mac address change in linux

[smitha.vanga at wipro.com]

Hi Scott,

When I execute below statements in linux to change the mac address I get the error Host name look up error.
Below are the commands I execute to change the mac address and the console output.


1. ifconfig eth0.246 down
2. ifconfig eth0.246 hw ether 00:11:22:33:44:55
   ifconfig: hw: Host name lookup failure

sh-3.1# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:E0:EE:00:05:2E
          inet addr:172.16.52.20  Bcast:172.16.53.255  Mask:255.255.254.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:999 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:93661 (91.4 KiB)  TX bytes:0 (0.0 B)

eth0.246  Link encap:Ethernet  HWaddr 00:E0:EE:00:05:2E
          inet addr:172.16.52.20  Bcast:172.16.53.255  Mask:255.255.254.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:248 (248.0 B)  TX bytes:248 (248.0 B)

sh-3.1# ifconfig eth0.246 down
sh-3.1# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:E0:EE:00:05:2E
          inet addr:172.16.52.20  Bcast:172.16.53.255  Mask:255.255.254.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1005 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:94205 (91.9 KiB)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:248 (248.0 B)  TX bytes:248 (248.0 B)

sh-3.1# ifconfig eth0.246 hw ether 00:11:22:33:44:55 ifconfig eth0.246 up
ifconfig: hw: Host name lookup failure
sh-3.1# 


Regards,
Smitha
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