Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!GATEWAY.MITRE.ORG!hal
From: hal@GATEWAY.MITRE.ORG (Hal Feinstein)
Newsgroups: comp.protocols.tcp-ip
Subject: IP access control
Message-ID: <8902241600.AA11112@gateway.mitre.org>
Date: 24 Feb 89 16:00:12 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 8

Who knows if  anything was/is/will be done to permit what DoD people
call "discretionary" access control at the IP level. Forms include
"filtering" based on host identity (address), host membership in a 
discretionary access control group, member of a subnet (perhaps via 
the IPSO and an RSA-like certificate).

I'm told that the new thing for all sorts of access control  problems is 
RSA-like certificates. Hope we can stand the overhead.