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Description of problem:

These command will hit the problem:
ifconfig eth0:0 192.168.1.1
ifconfig eth0:1 192.168.1.2
ifconfig eth0:0 down
ifconfig

Then you will find out that eth0:1 disappear.


Version-Release number of selected component (if applicable):

RHEL6.0 GA (Both 32 bits and 64bits hit the probelm)

How reproducible:
100%

Steps to Reproduce:
ifconfig eth0:0 192.168.1.1
ifconfig eth0:1 192.168.1.2
ifconfig eth0:0 down
ifconfig
#check eth0:1
  
Actual results:
eth0:1 also been removed.

Expected results:
The child interface is independent of others. eth0:1 should be still there.

Additional info:

Hello Gris,

thanks for the report however this is not a bug.
Please read bug #602368, that will give you all the explanation you need.

And try to use 'ip' command instead of ifconfig.
Give it a try and you will find it
much more useful (see bug #602368, comment #6).