Revert r281220 and r281024, so that the new content added and its
wording can be more properly discussed. Spelling fix made is kept. Suggested by: gleb @ MFC after: 1 week
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=281226
@ -244,9 +244,9 @@ IP datagrams (or all IP datagrams, if
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.Va ip.rfc6864
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is disabled) to be randomized instead of incremented by 1 with each packet
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generated.
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This prevents IP IDs being abused as a covert channel and also closes
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a minor information leak which allows remote observers to determine
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the rate of packet generation on the machine by watching the counter.
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This closes a minor information leak which allows remote observers to
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determine the rate of packet generation on the machine by watching the
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counter.
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At the same time, on high-speed links, it can decrease the ID reuse
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cycle greatly.
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Default is 0 (sequential IP IDs).
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