7 Apr 1987 08:58-EDT
Little has been developed for access control and accounting. Some gateways
(e.g. BBN?) can filter IP packets based on source/destination address.
I don't know of any which filter with knowledge of the protocol being used.
I do not know of any gateways that provide accounting data, although such
information as packet counts from a given host can be obtained from,
e.g. the ARPANET. I would not be surprised to hear that some gateways and
even some bridges keep some statistics about traffic loads, but probably
not by source or destination.
Thus far, the TCP/IP software has gone into private or gov't-owned systems
which have not demanded much inthe way of accounting (or of access control).
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