<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">There are choices, such as making connection initiation, connection acceptance, and connection termination parsable by network elements on the path so state can be established, maintained, and cleared, DoS can be identified, and so on. The decision was to hide all that from network elements.<div class=""><div class=""><br class=""></div><div class="">-d</div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Feb 20, 2020, at 7:54 PM, Matthew Kaufman <<a href="mailto:matthew@matthew.at" class="">matthew@matthew.at</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class=""><br class=""></div><div class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 20, 2020 at 8:10 AM Ca By <<a href="mailto:cb.list6@gmail.com" class="">cb.list6@gmail.com</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class=""><br class=""></div><div class=""><br class=""></div><div dir="auto" class="">Not indiscriminate. </div><div dir="auto" class=""><br class=""></div><div dir="auto" class="">As Google was informed by network operators all along since 2014, ipv4 UDP is a major uptime threat via DDoS to access networks. </div><div dir="auto" class="">...</div><div dir="auto" class=""><br class=""></div><div dir="auto" class="">Google choose not to be sensitive to that, they were told where the landmines were, they choose to go on anyhow. </div><div dir="auto" class=""><br class=""></div><div dir="auto" class=""></div></blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class=""></div></blockquote><div dir="auto" class=""><br class=""></div><div dir="auto" class="">It isn’t like they had a choice. You can’t build a transport protocol like QUIC on top of TCP (I know, I built one of its ancestors, which also uses UDP underneath). And if you think getting UDP through existing networks is hard, try using a novel IP protocol number.</div><div dir="auto" class=""><br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class=""></div></blockquote><div dir="auto" class="">Matthew Kaufman</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class=""><br class=""></div>
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