Please learn from my mistake and don't try to use a network device of eth0:0 under RHEL. I've used Red Hat since 5.x and have always started with eth0:0 and gone up from there, but under RHEL... well, you can do a service network restart and it will bring up the interface correctly, but the system won't boot! Reading the System Admin Guide for RHEL confirms that eth0:1 is the first alias allowed. Alternatively one could read the Admin Guide before making changes.

Of course this pages says it does work:

http://www.redhat.com/docs/manuals/enterpr...interfaces.html

I typically start counting with 1 so my first virtual adapter starts at eth0:1

I've got my first one at 0:0 and it's been working fine? I'm using RHEL...