On Tue, 25 Mar 2014 16:31:17 +1100, Mark Andrews said: > My bet is the number needing more that a single /64 will exceed the number > needing just a /64. Most phones really need two /64 for tethering and > currently there are lots of kludges to work around only one being available.
As a data point, cerowrt (an openwrt fork) will ask upstream for a /60 or /56 via dhcp-pd, and then burn a /64 for each logical subnet. On a WNDR3800, it can burn 9 /64s out of the box, and more if you start doing VLAN stuff...
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