ROHCv2: IP-ID for IPv6 is considered behaving randomly
ROHCv2: IP-ID for IPv6 is considered behaving randomly

This is important for the computation of the CRC-3 over control fields
that is used by co_repair and co_common.

didier-barvaux/rohc,didier-barvaux/rohc,didier-barvaux/rohc,didier-barvaux/rohc,didier-barvaux/rohc