How to configure ip failover using ifup?

Hello!

I want to configure additional ip address to eth0 interface. I got failover ip from my VPS provider. Somewhere in the net i found solution for centos:


vim /etc/sysconfig/network/ifcfg-eth0:0

insert:


DEVICE=eth0:0
BOOTPROTO=none
IPADDR=78.33.09.161
NETMASK=255.255.255.255
TYPE=Ethernet

and run

ifconfig eth0:0 up

but it doesnt work. Any solutions?