That proposal is far too wordy. Here is the executive summary: Encode extra address bits in extension headers. Add a network element near the destination that converts such that the destination IP of a packet to IP a.b.c.d with extension header containing e.f is translated to 192.168.e.f. In the reverse direction translate source address 192.168.e.f to a.b.c.d and add option header with e.f. Executive summary end. As far as I can tell, the only advantage of this proposal over IPv6 is that the network core does not need to be changed. You could communicate with someone that had an EZIP address regardless that your ISP did nothing to support EZIP. The disadvantage is that every single server out there would need to be changed so it does not just drop the option headers on the reply packets. All firewalls updated so they do not block packets with option headers. All applications updated so they understand a new address format. Servers and applications could also confuse TCP or UDP streams that are apparently from the same source, same port numbers, only thing that differentiates the streams is some option header that the server does not understand. The customers of the ISP that deploys EZIP would not need to update anything (unless they need to communicate with other poor souls that got assigned EZIP addresses), however everyone else would. This is not a good balance. The customers would experience an internet where almost nothing works. It would be magnitudes worse than the experience of an IPv6 only network with NAT64. It is a fix for the wrong problem. Major ISPs have IPv6 support now. It is the sites (=servers) that are lacking. If Twitter did not deploy IPv6 why would you expect them to deploy EZIP? Why would some old forgotten site with old song texts in some backwater country somewhere? We already have better solutions such as CGN with dual stack, NAT64, DS-Lite, MAP etc. None of that is discussed in the RFC. Is the author aware of it? Regards, Baldur Den 06/03/2017 kl. 09.08 skrev Joly MacFie:
To say that Mr. Chen's EZIP proposal has not, thus far, been received with open arms by the networking community would be an understatement. It is seen as delaying the inevitable and introducing an impractical extra routing hardware layer that will be hit & miss. Nevertheless, since much of the world is still IPv4 dependent, it just could take off. ISOC-NY is happy to give him the opportunity to expound on its merits. We'd welcome some expert respondents.
See: https://tools.ietf.org/html/draft-chen-ati-ipv4-with-adaptive-address-space-...
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WEBINAR TUESDAY: Can We Make IPv4 Great Again? w/ @AbrahamYChen
On Tuesday March 8 2017 at noon EST the Internet Society New York Chapter (ISOC-NY) presents a webinar Can We Make IPv4 Great Again?. Abraham Y. Chen, VP of Engineering, Avinta Communications, will present his EzIP proposal to reinvigorate the diminishing pool of IPv4 addresses. Optional registration at the link below. This will be recorded.
What: WEBINAR: Can We Make IPv4 Great Again? When: Tuesday March 8 2017 Noon EST | 17:00 UTC Register + info: https://www.meetup.com/isoc-ny/events/238164448/ Computer: https://zoom.us/j/914492141 Phone: http://bit.ly/zoomphone ID: 914 492 141 Twitter: #ezip
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