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Re: Naming of network devices - how to improve it in buster

On Sun, 2017-07-16 at 13:54 +0200, Guus Sliepen wrote:
> On Sat, Jul 15, 2017 at 10:25:22PM -0300, Henrique de Moraes Holschuh wrote:
> > > > This will match any interface that has MAC address 01:23:45:67:89:ab,
> > > > and will use the "foo" stanzas to configure it.
> > > 
> > > Awesome!  This sounds like the best solution so far.
> As Adam discovered, there was still a bug preventing this from actually
> working for allow-* interfaces, but a fix has just been uploaded.
> > It is indeed Very Cool, but it might not solve one little thing:
> > iptables firewalling.
> > 
> > Is that a way to trigger an ifrename using this, so that the network
> > device ends up being named "foo" ?
> That's indeed an interesting issue. Currently, ifupdown doesn't rename
> interfaces. You could add a line like:
> 	post-up ip link set $IFACE name $LOGICAL
> Which will do what you want, except ifupdown doesn't track interface
> renames this way and will get very confused.

Linux doesn't allow renaming an interface while it's up.


Ben Hutchings
If the facts do not conform to your theory, they must be disposed of.

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