Why addressing is an architectural issue Addresses are a limited resource It might take a long time to get more Re-addressing can be painful (Though some networks more painful than others) Consider interplay of entrance selection and addressing Don't split anything smaller than a /24 across sites (Except for point-to-point links) Consider using IP unnumbered on point-to-point links Consider host routes for loopback interfaces Think about the sites where you now have Internet connections
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