A doc describing a broadly used community utility makes a declare that I do not imagine. I am in search of clarification (RFC reference) concerning NAT gateways. The doc seems to make the declare that the primary handle of the block of translated IP locations is the gateway handle, with out the qualifier that it is a conference, not a technical requirement.
So who is true? Me? The doc? Has this doc not been up to date? Has my data not been up to date? What RFCs describe this intimately? I simply skimmed RFC 1918 and RFC 2663 however did not see something that may assist my clarification.
 Precise quote:
through [ FAMILY ] ADDRESS the handle of the nexthop router, within the handle household FAMILY. Really, the sense of this area relies on the route sort. For regular unicast routes it's both the true subsequent hop router or, if it's a direct route put in in BSD compatibility mode, it may be a neighborhood handle of the interface. For NAT routes it's the first handle of the block of translated IP locations.
If I had been to revise the final sentence I might insert the phrase usually, normally, or conventionally:
For NAT routes it usually is the primary handle of the of translated IP locations.