On Tuesday 02 June 2009 12:50:21 pm Brooks Davis wrote: > On Tue, Jun 02, 2009 at 04:45:31PM +0100, Bruce Simpson wrote: > > Brooks Davis wrote: > >> ... > >>> On boot time I instantiate a tap0 instance from cloned_interfaces=".." in > >>> /etc/rc.conf, and then use ifconfig_tap0="..." to clone the MAC address > >>> on the tap instance from the internal Ethernet port, as there is no other > >>> way of uniquely identifying the client for an automated bootstrap. > >>> > >>> This happens from within a flash image. > >>> > >> > >> I see nothing related to network_interfaces here... > >> > > > > I did explicitly name them there, so there would be no automated DHCP setup > > of any interfaces, even if hot-plugged. Perhaps I am thinking of > > cloned_interfaces=""... > > cloned_interfaces is different and will definiterly remain since you've > got to create them some how. They get created early and thus end up on > the list. Also, there's no need to worry about hot plugged interfaces > getting margically configured to do dhcp. For the system to do > something with an interface they following must be true: > > - It makes it in to the list of interfaces some how > - It actually exists or is create early in the process via > cloned_interfaces, gif_interfaces, etc > - The ifconfig_<if> variable is set (I think i can be "", but "up" is > alwasy a good choice if you just want a stub. > - The ifconfig_<if> variable must not contain the NOAUTO keyword. > > If all of those things are true, the interface will be configured at > startup or on insert. Otherwise, it won't be.
I think more specifically, if you don't set 'ifconfig_<if>' to "DHCP", then when you plug a <if> device in, nothing happens. DHCP is opt-in, not opt-out. The only reason one would want to limit network_interfaces is if you wanted to have an ifconfig_foo0 line in /etc/rc.conf but not have foo0 configured automatically. But you can already accomplish that via either the 'NOAUTO' keyword or just not having a bogus ifconfig_foo0 line. Given that, there really isn't a good reason to customize network_interfaces anymore. Unless someone has a real usage case that NOAUTO, etc. doesn't cover, I think this commit should be reverted. -- John Baldwin _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
