Re: Correct way to add multiple "secondary IPs"to one dev/interface in /etc/network/interfaces?

["Adrian Levi" <adrian.levi@gmail.com>]

On 22/12/2007, Jonathan Wilson <jw@mailsw.com> wrote:
> Here's the most important example from the original post. It works as-is.
> If I uncomment the commented "up" and "down" lines, everything breaks.
> Yes, I have real numbers and not nnn in the real config file.:
>
> allow-hotplug eth0
> iface eth0 inet static
>         address nn.nnn.179.107
>         netmask 255.255.255.224
>         broadcast nn.nnn.179.127
>         gateway nn.nnn.179.97
>         up ip addr add nn.nnn.179.108/27 broadcast nn.nnn.179.127 label eth0:1 dev eth0
> #        up ip addr add nn.nnn.179.109/27 broadcast nn.nnn.179.127 label eth0:2 dev eth0
>         down ip addr del nn.nnn.179.108/27 label eth0:1 dev eth0
> #        down ip addr del nn.nnn.179.109/27 label eth0:2 dev eth0
>         # dns-* options are implemented by the resolvconf package, if installed
>         dns-nameservers 192.168.0.8 192.168.0.16

Use a new stanza like this for each new interface you want to add to
an existing interface, you really don't need to be playing with route.

iface eth0:1 inet static
       address nn.nnn.18.175
       netmask 255.255.255.128
       network nn.nnn.18.128/25
       broadcast nn.nnn.18.255
       gateway nn.nnn.18.129

In the above example your chanding the routing information to an
interface eth0:1 and eth0:2 that dosen't actually exist.


Adrian

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