[CentOS] ip command

Fri Nov 18 09:23:02 UTC 2011
Fajar Priyanto <fajarpri at arinet.org>

Hi all,
I have this network:
10.1.20.0 - 10.1.23.0 /22
Broadcast 10.1.23.255

Say I have a machine with IP: 192.168.1.1
Now, I want to create virtual IP on it with ip command:

1. Is this ok?
ip addr add 10.1.22.100/22 dev eth0:1

2. Should I define the broadcast too in the above command?
If I don't define it, will the above command means the broadcast would
be 10.1.25.255?

Thank you.
Fajar.