Subject: Re: Redploying most of 127/8 as unicast public Date: Fri, Nov 19, 2021 at 09:04:59PM +0900 Quoting Masataka Ohta (mo...@necom830.hpcl.titech.ac.jp): > Mans Nilsson wrote: > > > The essence of an IP address is that it is unique. The larger the network > > area is that recognizes it as unique, the better it is. > > With proper layering, network addresses including IP ones, certainly, > uniquely identify *hosts*. > > However, with proper layering, *applications* only require uniqueness > of IP+Port, which is enough for the worldwide IPv4 network. > > As a result, NAT won the battle against IPv6. > > IPv6 addresses are free but useless.
With all due respect, you think about networks. I use and build networks. And my experience is that IP+port is not enough. We cope, because a lot of technical debt is amassed in corporate and ISP / access provider networks that won't change. We don't cope because NAT is good. Hardly a workday goes past without me thinking "If I could address this computer uniquely I'd go home earlier and with less grey hair". We must do better. -- Måns Nilsson primary/secondary/besserwisser/machina MN-1334-RIPE SA0XLR +46 705 989668 Do you have exactly what I want in a plaid poindexter bar bat??
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