At 08:39 AM 1/7/2002 -0500, RJ Atkinson wrote:

>Dennis's analysis seems dead-on to me.  The fix would be to have some
>kind of BSD Sockets API extension that could be used to identify the
>arriving interface for DHCP REQUEST packets.  Ideally, such an
>extension would be coordinated with the other *BSD kernel folks,
>so it could be more widely implemented than just NetBSD.

Actually, it already exists (in a slightly different form).  The IPv6
Advanced API contains just a method (IPV6_PKTINFO).  Just use the same
abstraction for IPv4 (IP_PKTINFO, struct in_pktinfo).  It's trivial.
I've done it in a private source pool.



-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message