Fair enough. I tend to think of Bogons as “Those addresses which shouldn’t be advertised _EVER_” (e.g. 10.0.0.0/8) while I tend to think of Unallocated as being more transient in nature. I realize that makes 224.0.0.0/4 classification as a bogon a bit of a grey area, while including all unallocated space makes a cleaner definition. I suppose part of the reason for that was I always tended to maintain bogons and unallocated as separate lists in ACLs and I usually kept the unallocated one in the dynamic configuration (in Juniper land) since it tended to need frequent update. Owen
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