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<div class="moz-cite-prefix">On 21/Jul/17 17:20, Lu Heng wrote:</div>
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<div dir="auto">I think it’s unlikely that many routers would
support anything below /24, as the practice of not allowing
split will lead to a decrease in supply in small blocks (as
large ones cannot be split), which undeniably increases
operation cost for small business.<br>
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Routers will support prefixes longer than a /24, it's just unlikely
most operators will do it as a matter of internal policy (which is
not to say some would not try as a way to win business; but a lack
of global co-operation would mean that business model is not one you
can take to Barclays).<br>
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Mark.<br>
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