> I think I've more or less worked out how network devices are initiated,
> and configured, with the help of the htmlised sources, but am not
> finding anything on how aliases (eth0:1 ...) work.
> Do they have an entire device structure that only differs in name and
> IP address?
In 2.0 they had. In 2.2+ they are just another entry on a per interface
address list. The notion of alias interfaces is just emulated for
compatibility, they really do not exist anymore.
-Andi
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