2007-05-02 2011-09-08 Specification Required 00 xxxxxx NALP - Not a LoWPAN frame 01 000000 Reserved as a replacement value for ESC 01 000001 IPv6 - uncompressed IPv6 Addresses 01 000010 LOWPAN_HC1 - LOWPAN_HC1 compressed IPv6 01 000011 through 01 001111 reserved for future use 01 010000 LOWPAN_BC0 - LOWPAN_BC0 broadcast 01 010001 through 01 011111 reserved for future use 01 1xxxxx LOWPAN_IPHC 10 xxxxxx MESH - Mesh header 11 000xxx FRAG1 -- Fragmentation Header (first) 11 001000 through 11 011111 reserved for future use 11 100xxx FRAGN -- Fragmentation Header (subsequent) 11 101000 through 11 111111 reserved for future use Specification Required 0000000000000000 to 0111111111111111 unicast addresses 1000000000000000 to 1001111111111111 multicast addresses 1010000000000000 to 1011111111111111 reserved for future assignment 1100000000000000 to 1101111111111111 reserved for future assignment 1110000000000000 to 1111111111111100 reserved for future assignment 1111111111111110 defined in IEEE 802.15.4 ("unassigned" short address) 1111111111111111 defined in IEEE 802.15.4 (broadcast address) IETF Review 00000000 to 11011111 Unassigned 1110000N IPv6 Hop-by-Hop Options Header 1110001N IPv6 Routing Header 1110010N IPv6 Fragment Header 1110011N IPv6 Destinations Options Header 1110100N IPv6 Mobility Header 1110101N Reserved for future extension headers 1110110N Reserved for future extension headers 1110111N IPv6 Header 11110CPP UDP Header 11111000 to 11111110 Unassigned 11111111 Unassigned, reserved for extensions