I have added 2 new destination unreachable codes that
Bob suggested in the ICMPv6 draft.
(me and Bob had a discussion offline and the text is
outcome of that)
Here is the new text. I would appreciate everyone's
comments.
==
ICMPv6 Fields:
Type 1
Code
If the reason for the failure to deliver is administrative
prohibition, e.g., a firewall filter, the Code field is set to 1.
If the reason for the failure to deliver is that packets with this
source address is not allowed due to ingress filtering policies, the
Code field is set to
Reject Route case is a specific case of the more general
administrative prohibition.
The administrative prohibition case might include other reasons
like source not allowed, destination not allowed, protocol
not allowed, port not allowed, in-secure packets not allowed,
etc.
Second paragraph of
