J. Noel Chiappa (JNC@XX.LCS.MIT.EDU)
Tue 25 Mar 86 22:33:00-EST


        It turns out that a common problem with a lot of host implementations
is that they take ICMP Error messages that the gateways go to some effort
to produce, and ..... throw them on the floor! I know that when I was trying
to test out the ICMP Error messages I added to my gateway a year or so ago,
I don't think there was a single kind of machine at MIT that I found that
would do anything with those messages. It's silly, cause the gateways often
*do* know why you are losing, but all you ever get from 'telnet foo' is
'timed out'. Grrr.
        As far as multiple interfaces go, the IP architecture doesn't
have any good way of dealing with that other than becoming a gateway.
(I have flamed extensively on why it's bad to try to add rudimentary
gateway funtionality to IP implementations that are primarily intended
for hosts, so I won't bore everyone by repeating that!) I am trying to
get changes made to the IP spec to help multi-homed hosts that want to
stay pretty simple, but there's nothing at the moment. Hopefully that
will change soon.


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