Switching from wired to wireless getting "network down"

[Jason Nordwick]

That busted my networking.
I did:

kldload if_lagg
ifconfig lagg0 create
ifconfig lagg0 lagproto failover lagport bfe0 lagport wpi0 192.168.1.1
netmask 255.255.255.0

Now when I ping 192.168.1.1, I get a "device busy" messages from ping.

Oops. I think I need to reboot to clear this up.

-j


On Sat, Mar 28, 2009 at 9:35 AM, Sam Leffler <sam at freebsd.org> wrote:

> J. Porter Clark wrote:
>
>> Date: Fri, 27 Mar 2009 10:04:29 -0700
>>>> From: Jason Nordwick <jnordwick at gmail.com>
>>>> Sender: owner-freebsd-mobile at freebsd.org
>>>>
>>>> This appears to be the case. "route get 192.168.1.1" (my netgear
>>>> wireless)
>>>> shows that it still wants to use bfe0 instead of the wpi0 interface. How
>>>> do
>>>> I get it so that when I unplug my cable and my wireless is up, it
>>>> changes
>>>> the routing table?
>>>>
>>>> -j
>>>>
>>>>
>>>> On Fri, Mar 27, 2009 at 9:31 AM, Jason Nordwick <jnordwick at gmail.com>
>>>> wrote:
>>>>
>>>>
>>>>
>>>>> I just updated to the current -STABLE (7.2-PRERELEASE is the same
>>>>> thing?
>>>>> hopefully).
>>>>>
>>>>> When I boot with the network cable plugged in, but then try to unplug
>>>>> it
>>>>> and up my wireless, it doesn't seem to work although the ifconfig shows
>>>>> I am
>>>>> joined to my wireless network. Is there some magic I need to do to
>>>>> reset the
>>>>> routing tables or something?
>>>>>
>>>>>
>>>>
>>
>>
>>> Depends on your configuration. Do you use DHCP or static network
>>> configurations? If it is DHCP, I suspect /etc/rc.d/dhclient restart
>>> would do the trick. If it is status:
>>> route add default abc.def.gh.ij
>>> should do the trick.
>>>
>>
>>
>>
>>> Going the other way can be a tiny bit more involved. 'ifconfig wlan0
>>> down' first or 'route delete default' to get rid of the current
>>> static. (Note: wlan0 on stable needs to be replaced with the name of
>>> your wireless interface.)
>>>
>>>
>>
>> I've been playing around with this sort of setup, too, where I
>> want a command line to change from wired to wireless (at the
>> same IP address, even) and back again.  I haven't found the
>> magic solution, particularly one that doesn't have a lot of
>> hardcoded network config in it.  I'm also somewhat ticked that
>> "route flush" doesn't really flush all routes like the man page
>> says.  8-) Eventually, I usually arrive at a point where I can't
>> find my way back and have to reboot to get some work done.
>>
>> Some things I've been using are "route delete <my ip address>"
>> and "route add -ifp <interface> default".  Might be a good idea
>> to "arp -a -d", too.
>>
>>
>>
> If this is 7.x or later, have you tried using lagg(4) to do automatic
> failover?  The man page says wpa doesn't work but after talking to Andrew we
> think that's no longer true.  I haven't had a chance to try it myself.
>
>   Sam
>
>
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