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From: MILLS@USC-ISID.ARPA.UUCP
Newsgroups: mod.protocols.tcp-ip
Subject: Re: The Big Bug?
Message-ID: <8605231624.AA07571@ucbvax.Berkeley.EDU>
Date: Fri, 23-May-86 11:00:05 EDT
Article-I.D.: ucbvax.8605231624.AA07571
Posted: Fri May 23 11:00:05 1986
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In response to the message sent  22 May 86 16:16 PDT from Perrine@LOGICON.ARPA

Tom,

The ICMP redirect includes a copy of the IP header (plus a few bits) of the
IPgram that was received and forwarded at the gateway. Presumably, the host
receiving such a thing has the opportunity to determine its authenticity using
this information. Granted  this doesn't nab all the bogs, especially with
raw-datagram protocols, but it is much better than nothing at all. What this means
is that it's hard to send gratuitous redirects to reasonable implementations
that remember, at least for a little while, the address/route bindings recently
used.

Dave
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