Date: Sun, 19 Dec 2010 21:37:30 +0100 From: Paul Koene <paul@wcclan.net> To: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: IPv6 Unkown header extension Message-ID: <5847A22B570A294AA4EC8C92C02F1D2E011D02F8B82C@haggis.wcclan.net>
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L.S., every once in a while I see the following messages filling the logs on my F= reeBSD installations: IPFW2: IPV6 - Unknown Extension Header(128), ext_hd=3D0 I am somewhat curious why this message occurs. Did I configure something wr= ong, Is there an implementation defect in an existing ipv6 stack that these= packets try to abuse or is this part of an OS fingerprinting technique or = something? Kind regards, Paul Koene=
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