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Another requirement [Re: New (-02) version of IPv6 CPE Router draft is available for review]
- To: v6ops@ops.ietf.org
- Subject: Another requirement [Re: New (-02) version of IPv6 CPE Router draft is available for review]
- From: Francois-Xavier Le Bail <fx.lebail@yahoo.com>
- Date: Thu, 31 Jul 2008 07:16:39 -0700 (PDT)
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Another requirement:
The CPE should install a discard (null) or unreachable route for the
delegated prefix.
Without, a packet to an unused subnet (belonging to the delegated prefix)
will loop between the CPE (default route to the Edge Router) and the Edge
Router (route for the delegated prefix to the CPE).
The only difference between the two options is: with unreachable route
the CPE return ICMPv6 "Destination Unreachable/no route to destination"
message to the source address instead of only silently discard the packet.
Francois-Xavier