On Tue, Jul 24, 2012 at 06:15:02PM +0200, frantisek holop wrote: > hmm, on Mon, Jul 23, 2012 at 08:10:49PM -0400, Dan Harnett said that > > On Tue, Jul 24, 2012 at 01:13:29AM +0200, frantisek holop wrote: > > > what i do: insert the usb wifi (/etc/hostname.urtwn0 > > > contains the correct network data), i disconnect the > > > ethernet cable, route -n flush, ifconfig re0 down, > > > sh /etc/netstart. > > > > I would recommend 'ifconfig re0 down delete', and do that before > > flushing the routing table. I would also make sure the dhclient > > process for that interface was dead. > > could you explain the reason behind the order? > the routing table would contain a default route > on a non-existing nic, no?
The order is to make sure re0 is no longer associated with anything in your routing table. The interface would be down, which makes the default gateway unreachable anyway. Considering that you're tearing down the interface manually, and changing the default route, it hardly matters that it is temporarily unreachable. > let's say if trunk did not exist, what would be the correct > way to do this? The way you're approaching it is alright. There are just some oddities with your setup. It would be more convenient to just have trunk handle it, though. Any connections will not be disrupted and you don't have to mess around with any part of the network. You can have hotplugd(8) handle it for you. /etc/hostname.re0: up /etc/hostname.trunk0: trunkproto failover trunkport re0 dhcp NONE NONE NONE Then have hotplugd setup urtwn0 on attach. ifconfig urtwn0 nwid BLAH wpa wpakey blahblah up ifconfig trunk0 trunkport urtwn0 When you want to switch back to the wired interface, just plug the cable in, wait a few seconds for any autonegotiation, and you can safely unplug the urtwn0.
