Hi, I have a question regarding the use of HC2 together with fragmentation in RFC4944: When sending a large fully compressable UDP packet, must all fragments contain HC_UDP encoding, or only the first one? i.e., if the IP packet has flow label and traffic class = 0, payload length inferred from L2, next header = UDP, source and destination addresses link local with interface identifier inferred from L2 addresses, UDP length inferred from IP length field , and I need 2 fragments: In all cases, fragment 1 should look like : FRAG1 dispatch, datagram size and tag | HC1 dispatch | HC1 encoding = 0xFB | HC2encoding | IPv6 hop limit | compressed source and dest UDP ports | UDP checksum | beginning of UDP payload Does fragment 2 look like: FRAGN dispatch, datagram size, tag and offset | HC1 dispatch | HC1 encoding = 0xFB | HC2encoding | IPv6 hop limit | compressed source and dest UDP port | UDP checksum | rest of UDP payload or FRAGN dispatch, datagram size, tag and offset | HC1 dispatch | HC1 encoding =0x FA | IPv6 hop limit | rest of UDP payload Thank you, Julien
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