Re: surprising property of ICMP redirect on Unix


MILLS@USC-ISID.ARPA
19 May 1986 17:44:50 EDT


In response to the message sent 19 May 86 00:50:03 EDT from HEDRICK@RED.RUTGERS.EDU

Charles,

While I have ample sympathy with your routing problems in the local
environment, I sure would like to discourage use of ICMP redirects in lieu
of something more robust. The danger of accidental and/or malicious abuse,
not to mention what happens when the bug is "fixed," would seem to argue against
the scheme in the first place. Several of us have been scratching on some
sort of gateway requirements model which, if it were adopted, might preclude
your scheme in the interests of robustness. Your comments on Appendix A of
RFC-981 would be much appreciated.

Dave
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