On Mon, 27 Dec 1999 15:01:42 +0900 
 itojun@iijlab.net wrote:

 > 	if_detach and ifnet-refcnt is good approach from kernel designer's
 > 	standpoint, but they do not really help existing userland codebase.
 > 	Most of them assume that list of network interface will not change
 > 	after it starts

...so, um, how about the routing socket?  Messages go down the routing
socket when the interface goes down, right?

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>