Observations on IPv6 EH Filtering in the Real World

Document Type Replaced Internet-Draft (individual)
Authors Fernando Gont  , Jen Linkova  , Tim Chown  , Will LIU 
Last updated 2015-03-08
Replaced by RFC 7872
Stream (None)
Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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IESG IESG state Replaced by draft-ietf-v6ops-ipv6-ehs-in-real-world
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document presents real-world data regarding the extent to which packets with IPv6 extension headers are filtered in the Internet (as measured in August 2014), and where in the network such filtering occurs. The aforementioned results serve as a problem statement that is expected to trigger operational advice on the filtering of IPv6 packets carrying IPv6 Extension Headers, so that the situation improves over time. This document also explains how the aforementioned results were obtained, such that the corresponding measurements can be reproduced by other members of the community.


Fernando Gont (fgont@si6networks.com)
Jen Linkova (furry@google.com)
Tim Chown (tjc@ecs.soton.ac.uk)
Will LIU (liushucheng@huawei.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)