In automation there are used inexpensive serial communication bus
technologies (eg. RS-485, CAN, etc. ) that allow connection of many
devices to a single serial bus and those serial buses could be used
to transfer IP protocol datagrams as well. However, there is no
standardized protocol that would define how to transfer IP datagrams
over such inexpensive serial buses. The purpose of this document is
to present a draft specification of a protocol that would define how
to transfer IP datagrams over CAN.
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