Date: Thu, 11 Oct 2001 19:04:26 +1000
From: "Hesham Soliman (EPA)" <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
| > If one reads the last paragraph of page 6 one can read it two ways:
I think way too much is being read into that. Routers are only
required to look at the IPv6 header, and the HbH options header if
one exists. Only if there is some problem with one of those will
a router drop a packet (for IPv6 reasons, as distinct from congestion,
no route, etc).
The
If, as a result of processing a header, a node is required
to proceed to the next header, ...
means "where a node has to look at the next header", then if its type
is unknown, the packet has to be dropped. A router never looks at the
next header, unless its type is "HbH" - in which case (one hopes) it
isn't an unknown type.
Note: it doesn't say that if you process a header and it contains an
unknown next header field you drop the packet - only if you have to
process the next header, and its type (which comes from the current
header) is unknown. Routers never have to process the next header...
ie: your reply is right, the question is assuming things the text doesn't say.
kre
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