<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Anyone willing to write a icmp(8/0) concatenation/concentration/proxy tool ? That can be deployed at the provider edge ?<br><br>Catch all the packets !!!<div><br><div dir="ltr"><div><span style="background-color: rgba(255, 255, 255, 0);">-- </span></div><div><span style="background-color: rgba(255, 255, 255, 0);"> J. Hellenthal</span></div><div><span style="background-color: rgba(255, 255, 255, 0);"><br></span></div><span style="background-color: rgba(255, 255, 255, 0);">The fact that there's a highway to Hell but only a stairway to Heaven says a lot about anticipated traffic volume.</span></div><div dir="ltr"><br><blockquote type="cite">On Feb 8, 2022, at 21:18, Mike Hammett <nanog@ics-il.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000">What irked me today was an equipment manufacturer. I found out because Google had some issues handling ICMP to their DNS resolvers today and some of my devices started spazzing out.<div><br></div><div>There's no reason this manufacturer doesn't just setup a variety their own servers to handle this, other than being lazy.<br><br><div><span name="x"></span><br style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><br style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;display:inline !important;float:none">-----</span><br style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;display:inline !important;float:none">Mike Hammett</span><br style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="http://www.ics-il.com/" style="font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" target="_blank" rel="nofollow noopener noreferrer">Intelligent Computing Solutions</a><br style="color:rgb( 0 , 0 , 0 );font-family:'times new roman';font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="https://www.facebook.com/ICSIL" style="font-family:'times new 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src="http://www.ics-il.com/images/youtubeicon.png" style="border:0pt none" data-unique-identifier=""></a><span name="x"></span><br></div><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Mark Delany" <k3f@november.emu.st><br><b>To: </b>"NANOG" <nanog@nanog.org><br><b>Sent: </b>Tuesday, February 8, 2022 5:13:30 PM<br><b>Subject: </b>Re: Authoritative Resources for Public DNS Pinging<br><br>On 08Feb22, Mike Hammett allegedly wrote:<br><br>> Some people need a clue by four and I'm looking to build my collection of them. <br><br>> "Google services, including Google Public DNS, are not designed as ICMP network testing services"<br><br>Hard to disagree with "their network, their rules", but we're talking about an entrenched,<br>pervasive, Internet-wide behaviorial issue.<br><br>My guess is that making ping/ICMP less reliable to the extent that it becomes unusable<br>wont change fundamental behavior. Rather, it'll make said "pingers" reach for another tool<br>that does more or less the same thing with more or less as little extra effort as possible<br>on their part.<br><br>And what might such an alternate tool do? My guess is one which SYN/ACKs various popular<br>TCP ports (say 22, 25, 80, 443) and maybe sends a well-formed UDP packet to a few popular<br>DNS ports (say 53 and 119). Let's call this command "nmap -sn" with a few tweaks, shall<br>we?<br><br>After all, it's no big deal to the pinger if their reachability command now exchanges<br>10-12 packets with resource intensive destination ports instead of a couple of packets to<br>lightweight destinations. I'll bet most pingers will neither know nor care, especially if<br>their next-gen ping works more consistently than the old one.<br><br>So. Question. Will making ping/ICMP mostly useless for home-gamers and lazy network admins<br>change internet behaviour for the better? Or will it have unintended consequences such as<br>an evolutionary adaptation by the tools resulting in yet more unwanted traffic which is<br>even harder to eliminate?<br><br><br>Mark.<br></div><br></div></div></div></blockquote></div></body></html>