Re: AH and mutable fields, how deep to look?

[itojun@itojun.org (Jun-ichiro itojun Hagino)]

> To make it clear, perhaps change the graphics into (not too happy with
> this, but):
> 
>       ------------------------------------------------------------
> IPv6  |             |hop-by-hop, dest*, |    | dest |     |      |
>       |orig IP hdr  |routing, fragment. | AH | opt* | TCP | Data |
>       ------------------------------------------------------------
>       |<-- mutable fields processing -->/////<--immutable------->|
>       |<---- authenticated except for mutable fields ----------->|

	this is important, when implementing multiple AH on a packet
	(crazy example but possible, and we had interop problem in Connectathon
	between KAME and Solaris)

itojun