Folks, FYI, we've published a new IETF I-D entitled "Security and Interoperability Implications of Oversized IPv6 Header Chains". The I-D is available at: <http://tools.ietf.org/id/draft-gont-6man-oversized-header-chain-00.txt> Any feedback will be very welcome. Thanks, -- Fernando Gont SI6 Networks e-mail: fgont@xxxxxxxxxxxxxxx PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492