Title: Cisco's Statement about IPR claimed in draft-ietf-l2tpext-pwe3-hdlc Received: April 4, 2004 From: Robert Barr Cisco is the owner of US Patents 5918019, 6308213, 6487598 and one or more pending patent applications relating to the subject matter of "HDLC Frames over L2TPv3" . If technology in this document is included in a standard adopted by IETF and any claims of any Cisco patents are necessary for practicing the standard, any party will be able to obtain a license from Cisco to use any such patent claims under reasonable, non-discriminatory terms, with reciprocity, to implement and fully comply with the standard. For information contact: Robert Barr Worldwide Patent Counsel Cisco Systems 408-525-9706 rbarr@cisco.com