Forwarding Packets With Link Local Destination Addresses

Ron Bonica <rbonica@juniper.net> Thu, 07 January 2021 17:53 UTC

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From: Ron Bonica <rbonica@juniper.net>
To: "6man@ietf.org" <6man@ietf.org>
Subject: Forwarding Packets With Link Local Destination Addresses
Thread-Topic: Forwarding Packets With Link Local Destination Addresses
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Date: Thu, 7 Jan 2021 17:53:51 +0000
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Folks,

According to RFC 4291, "routers must not forward any packets with Link-Local source or destination addresses to other links".

I interpret this statement to include packets that contain routing headers. For example, it forbids an SRv6 packet whose final segment has a locator that begins with FE80.

Does everyone share this interpretation? If so, do RFC 4291 or RFC 8200 make this sufficiently clear?

                                                                                                   Ron


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