> >> >>> Finally, how do you know when you can even use this? Legacy devices >>> could choke on such packets - whether routers or endpoints. >> That is a real concern, yes. For the same reason that new transports >> like SCTP and DCCP have been proven difficult to deploy. With this >> proposal, ip-proto-44 would be just another protocol that middleboxes >> block. But, maybe it would work in private internetworks such as >> an enterprise network.
Upgrading enterprise networks isn’t so easy these days. They have many different kinds of devices (some owned by the enterprise, some BYOD) each with different software. It’s one thing to push out an application, changing the IP stack is difficult. > IMO, if you've gotten to the point of upgrading a system to speak a new > variant of IPv4, it ought to be IPv6. +1 Especially, since most devices have IPv6 already. Bob
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