Desired behaviour of "ifconfig -alias"

[Brooks Davis]

On Mon, Feb 12, 2007 at 09:06:59PM +0200, John Hay wrote:
> On Mon, Feb 12, 2007 at 11:59:40AM -0600, Brooks Davis wrote:
> > On Mon, Feb 12, 2007 at 06:39:35PM +0100, Oliver Fromme wrote:
> > > Brooks Davis wrote:
> > >  > Oliver Fromme wrote:
> > >  > > Jeremy Chadwick wrote:
> > >  > > > Oliver Fromme wrote:
> > >  > > > FWIW, I still use alias/-alias.  Mainly because that's what has
> > >  > > > existed historically, and the term "alias" is what is used in
> > >  > > > reference to rc.conf ifconfig_iface_aliasX entries.
> > >  > > 
> > >  > > Maybe it would make sense to remove "alias" from the rc.conf
> > >  > > entries and simply number them.
> > >  > 
> > >  > ipv4_addrs_<interface> is a much better replacement IMO.  It's easy to
> > >  > use and doesn't required the hackish pseudo array traversal used by
> > >  > ifconfig_iface_aliasX.
> > > 
> > > That might work for simple cases, but how do you specify
> > > other parameters beside the IPs if you need to?
> > 
> > What do you need to set?  It's sets IP and netmask.  It doesn't handle
> > broadcast, but I'd be pretty suprised if that's needed often.  What else
> > is needed?  Axing ifconfig_iface_aliasX is not needed, but reducing the
> > visiability of the interface in the documentation is probably in order
> > particularly since it's quite fragile since you have to renumber whenever
> > you remove an entry.
> 
> Some stuff cannot be done on a single line, so I have abused the _aliasX
> mechanism for that. With the bridge interface:
> 
> ifconfig_bridge0="ether 00:00:24:c0:0e:40 addm sis0 stp sis0 addm sis1 stp sis1 up"
> ifconfig_bridge0_alias0="inet 146.64.84.1/24"

ipv4_addrs_bridge0="146.64.84.1/24" :)

> Also with the atheros driver I had problems in the past with some parameters
> that did not like to be on a single commandline.

I do agree there's some need for a way to pass multiple sets of
parameters to ifconfig since this has commonly been a problem.
Something actually designed for that might be nice. :)

-- Brooks
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