<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">You break anyone who is performing lookups from behind a PMTU limited connection. <div><div><div><div><div><div><div><div><div id="AppleMailSignature" dir="ltr">-- <div>Mark Andrews</div></div><div dir="ltr"><br>On 24 May 2019, at 21:10, Jan Včelák <<a href="mailto:jv@fcelda.cz">jv@fcelda.cz</a>> wrote:<br><br></div><blockquote type="cite"><div dir="ltr"><div dir="auto"><div dir="auto">Hello,</div><div dir="auto"><br></div><div dir="auto">I can confirm we do not respect the buffer size. We are aware of this deficiency but it also doesn't have high priority at the moment.</div><div dir="auto"><br></div><div dir="auto">Have you encountered a situation where it has been causing trouble for a real application? Or is this an accidental discovery?</div><div dir="auto"><br></div><div dir="auto">Jan (NS1)</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Dne pá 24. 5. 2019 12:19 uživatel Manabu Sonoda <<a href="mailto:manabu-s@iij.ad.jp">manabu-s@iij.ad.jp</a>> napsal:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Are NS1not implement edns0 buffer size ?<br>
Do they plan to implement it ?<br>
<br>
( Close eyes bad rdata....)<br>
<br>
dig @<a href="http://dns2.p07.nsone.net" rel="noreferrer noreferrer" target="_blank">dns2.p07.nsone.net</a> <a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a> txt +bufsize=512<br>
<br>
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.23.rc1.el6_5.1 <<>> @<a href="http://dns2.p07.nsone.net" rel="noreferrer noreferrer" target="_blank">dns2.p07.nsone.net</a> <a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a> txt +bufsize=512<br>
; (1 server found)<br>
;; global options: +cmd<br>
;; Got answer:<br>
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11262<br>
;; flags: qr aa rd; QUERY: 1, ANSWER: 12, AUTHORITY: 0, ADDITIONAL: 1<br>
;; WARNING: recursion requested but not available<br>
<br>
;; OPT PSEUDOSECTION:<br>
; EDNS: version: 0, flags:; udp: 4096<br>
;; QUESTION SECTION:<br>
;<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. IN TXT<br>
<br>
;; ANSWER SECTION:<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "MS=ms71622826"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "aoLxrQBK4FSoQsQVxk8Oh0QqDIiILef/m6EwZTmpg1M="<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "cH2cwv2lMzoxbrhQDsfB7LDv/Jsu2TDDZSQznoA/H1rtSih8CLKju0RZrRDahPyMLM4ZYA8sGijs561ll2AZPw=="<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "eBPD7w6DE9vYNPwczqepRahUkUAkBw5qxW7qsAOd+ig="<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "google-site-verification=gtfgX6oja-rl-TcVUtRidcodGC-4xwiVrFdhz2Njuo0"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "pardot_341121_*=1f62b656fc75f01e2dbf46962f3df567f9435270c2ac313c6587c4bbef258d0f"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "v=DKIM1\;k=rsa\; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC1vhugV30ayqwRy2mu+m6QyxvdVtHee/ChrUqtrPflazjf3LfuGryocUGTZ66DsHZeTpjqdcRRXms1+xpVsqqeiXipw4jNPwx9VpyIyg0suI/2QYsIjKyj0OFYWe22Ilgp/zjXXJUxJ4fTqT5ae0cAX5u3GNsj6dA8u9n3atIlIwIDAQAB"<br>
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<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "v=DKIM1\;k=rsa\;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDL/t1pilYMRJcrBcyXuRdNmdpN1fnF0cC6eI34BAw7w8YW1cwH14MjbhtX6QrWhrpGFGDZOzEv3BSA8MXWNMxInJtppacMoSB2ZCRwWe4d0Hk0uklh5g5iydksSAwf+GK8YJEj9UPDJx6/y7zQytjWee9s4n2ABSGpDCMMdJkFBQIDAQAB"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "v=DMARC1\;p=reject\;rua=mailto:<a href="mailto:dmarc@globalsign.com" target="_blank" rel="noreferrer">dmarc@globalsign.com</a>"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "v=spf1 ip4:<a href="http://114.179.250.0/30" rel="noreferrer noreferrer" target="_blank">114.179.250.0/30</a> ip4:<a href="http://211.123.204.251/32" rel="noreferrer noreferrer" target="_blank">211.123.204.251/32</a> ip4:<a href="http://27.121.42.215/32" rel="noreferrer noreferrer" target="_blank">27.121.42.215/32</a> ip4:<a href="http://211.11.149.164/32" rel="noreferrer noreferrer" target="_blank">211.11.149.164/32</a> include:<a href="http://spf.protection.outlook.com" rel="noreferrer noreferrer" target="_blank">spf.protection.outlook.com</a> include:_<a href="http://spf.salesforce.com" rel="noreferrer noreferrer" target="_blank">spf.salesforce.com</a> include:<a href="http://spf-bma.mpme.jp" rel="noreferrer noreferrer" target="_blank">spf-bma.mpme.jp</a> include:_<a href="http://spf.act-on.net" rel="noreferrer noreferrer" target="_blank">spf.act-on.net</a> include:es._<a href="http://spf.adp.com" rel="noreferrer noreferrer" target="_blank">spf.adp.com</a> -all"<br>
<a href="http://globalsign.com" rel="noreferrer noreferrer" target="_blank">globalsign.com</a>. 300 IN TXT "yandex-verification:e54a3279b05955ba"<br>
<br>
;; Query time: 3 msec<br>
;; SERVER: 198.51.45.7#53(198.51.45.7)<br>
;; WHEN: Fri May 24 18:48:31 2019<br>
;; MSG SIZE rcvd: 1551<br>
<br>
-- <br>
Manabu Sonoda <<a href="mailto:manabu-s@iij.ad.jp" target="_blank" rel="noreferrer">manabu-s@iij.ad.jp</a>><br>
Internet Initiative Japan Inc.<br>
<br>
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