Re: route not being deleted from wm0

[Frank Kardel <kardel%netbsd.org@localhost>]

Steven M. Bellovin wrote:
> I often move my laptop between wired (wm0) and wireless (wpi0)
> connections to the same subnet.  Going from wpi0 to wm0 access works
> fine.  However, when I go the other way, there's a subnet route that
> hasn't been deleted.  Is there some bug in the wm0 driver or perhaps
> in one of the pieces it depends on that wpi0 doesn't use?  I believe
> hubertf has run into the same thing; see the comment about 'route flush'
> at http://www.feyrer.de/NetBSD/bx/blosxom.cgi/nb_20070816_1133.html
>
>
>   
> 		--Steve Bellovin, http://www.cs.columbia.edu/~smb
>   
In case you run routed:
As for missing routes wrt/ WLAN I have another datapoint. When an interface
has too many errors (wpi0 can do that) routed can decide that this is a 
bad interface and
disable that - it looks like the routed got lost (see log messages in 
/var/log/messages).
routed's behaviour may not be the best here in wlan world as routed even 
manages to
kill the interface with the default route leaving you disconnected :-(.

Frank