We can use multiple IP addresses for a single interface in Linux (eg. eth0:0, eth0:1). But can we use DHCP and static IP at the same time? eth0:1 should have a static IP address and eth0:0 should be configured using DHCP.
How can we accomplish both?
Yes, this can be done. However, you would usually use eth0 and eth0:0 for this instead of eth0:0 and eth0:1. You could set up your /etc/network/interfaces file like this:
auto lo eth0 eth0:0
iface lo inet loopback
iface eth0 inet dhcp
iface eth0:0 inet static
address ...
netmask ...
You probably don't want to set a gateway on the eth0:0 interface because that could conflict with the gateway settings you get from DHCP. If you enter manual settings in /etc/network/interfaces you will want to make sure network-manager is not trying to manage your settings. This is covered here.
