Re: How to configure a DHCP + (2nd) Static address (eg on eth0+eth0:0)?

[Andrei Borzenkov <arvidjaar gmail com>]

29.09.2015 20:54, Dan Williams пишет:
> > Basically I want to automate NM doing, effectively:
> >
> >    ifconfig eth0:0 192.168.x.y
>
> Don't do this with interface aliases; the kernel is perfectly capable of
> using more than one address on the same interface.  Simply do:
>
> ip addr add 192.168.x.y/24 dev eth0
>
> and magically you'll have two.


This makes addresses invisible in ifconfig output and that may confuse 
legacy software (I know about at least one such case). Adding "label 
xxx" will emulate legacy aliases enough to make them appear as "normal" 
interface.