>Is it possible to setup and use intermediate headers such as routing
>headers on NetBSD ?

	NetBSD implements RFC2292.

>AFAIK, much of the Ipv6 work to date has been
>straight TCP/UDP over IPv6 and/or adding IPSec to that equation.  For
>that matter, do AH headers for IPv6 get inserted between TCP & IPv6
>with an appropriate "next header" chain ?

	userland apps cannot control IPsec headers like AH/ESP directly.
	to have AH/ESP attched to your packet, setup IPsec policy and
	security association.

itojun