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LOWPAN_HC1g Addresses PAN has a compressible global prefix (CGP) associated with it Prefix is elided whenever it matches the CGP Four HC1g address forms: Full 128 bits for arbitrary IPv6 addresses 64 bits: prefix derived from CGP, IID carried inline 16 bits: prefix derived from CGP, 6LoWPAN encoded short inline 0 bits: prefix derived from CGP, IID derived from lower layers (e.g. 802.15.4 src/dest or 6LoWPAN orig/final) Arbitrary Prefix Arbitrary IID Elided Arbitrary IID Elided SA Elided |