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From: wiltzius@lll-crg.llnl.gov (Dave Wiltzius)
Newsgroups: comp.protocols.tcp-ip
Subject: Proxy ARP question
Message-ID: <97879@lll-winken.LLNL.GOV>
Date: 23 May 91 17:47:21 GMT
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Organization: Lawrence Livermore National Laboratory
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I have searched the host requirements documents, rfc1009 and other
RFCs without finding a definitive answer to the following:  Should
proxy ARP work only for hosts on the same network, but different
subnets?  In particular, should it specifically *not* work between
hosts on different networks (such as 128.100 and 128.99)?

Nothing I have found says it should not work for the latter but
there are statements that imply it should only work for hosts on
subnetted networks when going to other hosts on the same subnetted
network (here the assumption is that the host depending upon proxy
ARP does not do subnetting).

Thanks.
  Dave Wiltzius
  Lawrence Livermore Nat'l Lab
  wiltzius@llnl.gov