- Bronze, 100 points or more
A while back the general advise was to assign a /64 for each and every VLAN. I still believe this to be true and a correct advise for all VLANs that connect end-users (because of auto address features and temporary addresses).
But is this still true, best practice, for networks that do not serve end-users, like transit networks between routers, server networks or even networks for ip-phones?
What protocols cannot handle networks with masks larger (more bits in mask) /64?
Any other reasons that should stop me from assigning, let's say /120's ?
(reason for this question is that we see providers assigning /56 PA addressblocks and these only leave room for 256 VLAN's, when only using /64's)
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