Re: Configuring multiple IP addresses on VLAN interface using ifupdown
On Fri, Oct 18, 2013 at 2:30 PM, Miles Fidelman
<mfidelman@meetinghouse.net> wrote:
> Tom H wrote:
>> On Fri, Oct 18, 2013 at 12:35 PM, Miles Fidelman
>> <mfidelman@meetinghouse.net> wrote:
>>
>> eth0:1 is an alias.
>>
> ummm... no, eth0:1 is a virtual interface riding on top of a physical one
> (eth0 being the physical interface).
The OP's asking about eth0.1 NOT eth0:1.
They're both virtual. The first is an interface whose broadcast domain
is defined and limited by the "1" and the second is an alias that
allows you to assign extra ip addresses to an interface. The alias
concept and notation is the result of the old ioctl networking
infrastucture. In the new netlink networking infrastructure, you can
assign more than one address to ethX (but you can still label the
extra address/addresses with :I).
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