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IP alias fails when using ifup eth0:1

Hi group,
I having a problem with my network. I'm trying to assign an IP alias of eth0:1 to eth0. If I use ifup eth0:1 is fails and corrupts the network.
Making the network useless.
But if I just enter 'ifconfig eth0:1 10.1.1.51', it work fine?
My scripts look like these:

Code:

:network-scripts; cat ifcfg-eth0



NAME="System eth0"

DEVICE=eth0

ONBOOT=yes

TYPE=Ethernet

BOOTPROTO=none

IPV4_FAILURE_FATAL=no

IPV6INIT=no

USERCTL=yes

IPADDR=10.1.1.55

NETMASK=255.255.255.0

GATEWAY=10.1.1.3

DNS1=10.1.1.3

NM_CONTROLLED=no

PREFIX=24

network-scripts; cat ifcfg-eth0:1



NAME="System eth0:1"

DEVICE=eth0:1

BRIDGE=br1

BOOTPROTO=none

IPV4_FAILURE_FATAL=no

IPV6INIT=no

USERCTL=yes

IPADDR=10.1.1.51

ONBOOT=no

Any ideas on what I'm doing wrong??

Thanks for your time.

I would follow the KISS rule and get a basic configuration running on ifcfg-eth0:1 Since it is an additional IP address it really only needs a name, label, boot permissions, IP address and netmask. I am not certain why you would even need a bridge. After that figure out if you even need any of the other information and add them one at a time.

Code:

NAME="System eth0:1"

DEVICE=eth0:1

IPADDR=10.1.1.51

NETMASK=255.255.255.0

ONBOOT=yes

Quote:

Originally Posted by joec@home (Post 4071884)

Code:

NAME="System eth0:1"

DEVICE=eth0:1

IPADDR=10.1.1.51

NETMASK=255.255.255.0

ONBOOT=yes

That did it. The reason for the bridge is for a virtualized domain.
But that is another story.