<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Aptos;}
@font-face
{font-family:"Segoe UI";
panose-1:2 11 5 2 4 2 4 2 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:10.0pt;
font-family:"Aptos",sans-serif;
mso-fareast-language:EN-US;}
.MsoChpDefault
{mso-style-type:export-only;
mso-fareast-language:EN-US;}
.MsoPapDefault
{mso-style-type:export-only;
margin-bottom:8.0pt;
line-height:115%;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:304631123;
mso-list-template-ids:99543842;
mso-list-style-priority:99;
mso-list-style-name:ListLineList;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-style-link:ListLine;
mso-level-text:\2212;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:14.2pt;
text-indent:-14.2pt;
font-family:"Segoe UI",sans-serif;
mso-bidi-font-family:"Times New Roman";}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:\2212;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:28.4pt;
text-indent:-14.2pt;
font-family:"Segoe UI",sans-serif;
mso-bidi-font-family:"Times New Roman";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\2212;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:42.6pt;
text-indent:-14.2pt;
font-family:"Segoe UI",sans-serif;
mso-bidi-font-family:"Times New Roman";}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\2212;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:56.8pt;
text-indent:-14.2pt;
font-family:"Segoe UI",sans-serif;
mso-bidi-font-family:"Times New Roman";}
@list l0:level5
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:71.0pt;
text-indent:-14.2pt;}
@list l0:level6
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:3.0cm;
text-indent:-14.05pt;}
@list l0:level7
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:99.25pt;
text-indent:-14.2pt;}
@list l0:level8
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:4.0cm;
text-indent:-14.15pt;}
@list l0:level9
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:127.6pt;
text-indent:-14.2pt;}
@list l1
{mso-list-id:427505037;
mso-list-template-ids:-1144734454;
mso-list-style-priority:99;
mso-list-style-name:ListNumericList;}
@list l1:level1
{mso-level-style-link:ListNumeric;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:21.25pt;
text-indent:-21.25pt;}
@list l1:level2
{mso-level-text:"%1\.%2\.";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:49.6pt;
text-indent:-1.0cm;}
@list l1:level3
{mso-level-text:"%1\.%2\.%3\.";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:3.0cm;
text-indent:-35.45pt;}
@list l1:level4
{mso-level-text:"%1\.%2\.%3\.%4\.";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:127.6pt;
text-indent:-42.55pt;}
@list l1:level5
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:5.0cm;
text-indent:-1.0cm;}
@list l1:level6
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:6.0cm;
text-indent:-1.0cm;}
@list l1:level7
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:7.0cm;
text-indent:-1.0cm;}
@list l1:level8
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:8.0cm;
text-indent:-1.0cm;}
@list l1:level9
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:9.0cm;
text-indent:-1.0cm;}
@list l2
{mso-list-id:528565934;
mso-list-template-ids:-1105406994;
mso-list-style-priority:99;
mso-list-style-name:LIstAlphabeticList;}
@list l2:level1
{mso-level-number-format:alpha-lower;
mso-level-style-link:ListAlphabetic;
mso-level-text:"%1\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:14.2pt;
text-indent:-14.2pt;}
@list l2:level2
{mso-level-number-format:alpha-lower;
mso-level-text:"%2\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:28.4pt;
text-indent:-14.2pt;}
@list l2:level3
{mso-level-number-format:alpha-lower;
mso-level-text:"%3\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:42.6pt;
text-indent:-14.2pt;}
@list l2:level4
{mso-level-number-format:alpha-lower;
mso-level-text:"%4\)";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:56.8pt;
text-indent:-14.2pt;}
@list l2:level5
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:71.0pt;
text-indent:-14.2pt;}
@list l2:level6
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:85.2pt;
text-indent:-14.2pt;}
@list l2:level7
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:99.4pt;
text-indent:-14.2pt;}
@list l2:level8
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:113.6pt;
text-indent:-14.2pt;}
@list l2:level9
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:127.8pt;
text-indent:-14.2pt;}
@list l3
{mso-list-id:1242057115;
mso-list-template-ids:452222004;
mso-list-style-priority:99;
mso-list-style-name:ListBulletList;}
@list l3:level1
{mso-level-number-format:bullet;
mso-level-style-link:ListBullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:14.2pt;
text-indent:-14.2pt;
font-family:Symbol;}
@list l3:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:28.4pt;
text-indent:-14.2pt;
font-family:Symbol;}
@list l3:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:42.6pt;
text-indent:-14.2pt;
font-family:Symbol;}
@list l3:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:56.8pt;
text-indent:-14.2pt;
font-family:Symbol;}
@list l3:level5
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:71.0pt;
text-indent:-14.2pt;}
@list l3:level6
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:85.2pt;
text-indent:-14.2pt;}
@list l3:level7
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:99.4pt;
text-indent:-14.2pt;}
@list l3:level8
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:113.6pt;
text-indent:-14.2pt;}
@list l3:level9
{mso-level-number-format:none;
mso-level-text:"";
mso-level-tab-stop:none;
mso-level-number-position:left;
margin-left:127.8pt;
text-indent:-14.2pt;}
@list l4
{mso-list-id:1306199317;
mso-list-template-ids:1431326520;}
@list l4:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:36.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l4:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:72.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:"Courier New";
mso-bidi-font-family:"Times New Roman";}
@list l4:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:108.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l4:level4
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:144.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l4:level5
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:180.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l4:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:216.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l4:level7
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:252.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l4:level8
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:288.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l4:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:324.0pt;
mso-level-number-position:left;
text-indent:-18.0pt;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
--></style>
</head>
<body lang="DE-AT" link="#004289" vlink="#96607D" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Dear ISC KEA Community,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">We’re encountering an intermittent issue when creating DHCP reservations in our Micetro environment (version
<b>25.2.1</b>) running on Kea (<b>2.6.4</b>) in a <b>high-availability (HA) setup</b>.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">The same request succeeds at times but fails unpredictably with the following server response:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">{'error': {'code': 5376, 'message': 'Error creating a reservation: Unable to update the configuration due to an error: Error initializing hooks: CmdHttpListener::run failed: unable to setup TCP
acceptor for listening to the incoming HTTP requests: bind: Address already in use.'}}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">The HTTP response code is
<b>400 (Bad Request)</b>, which is misleading since the request itself is valid (identical requests succeed at other times).<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt">Additional observations:</span></b><span style="font-size:11.0pt"><o:p></o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l4 level1 lfo9"><span lang="EN-US" style="font-size:11.0pt">During the failure, the
<b>primary server</b> appears to be in <b>standby mode</b> (as if it were the secondary).<o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l4 level1 lfo9"><span lang="EN-US" style="font-size:11.0pt">The only workaround we’ve found is manually running keactrl reload on the primary server to restore normal operation.<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Our logs suggest the issue stems from a resource conflict (e.g., TCP port exhaustion or a lingering listener), but we’re unsure how to diagnose or resolve it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Has anyone encountered this behavior before? Any insights or troubleshooting steps would be greatly appreciated.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you in advance!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Tom<o:p></o:p></span></p>
</div>
<div style="font-size:8pt; font-family: 'Calibri',sans-serif;"><br>
Diese E-Mail kann vertrauliche Informationen enthalten und irrtümlich an Sie gelangt sein. In diesem Fall informieren Sie bitte sofort die Absenderin bzw. den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser
Mail oder von Teilen dieser Mail sind nicht gestattet. <br>
<br>
Informationen gemäß DSGVO zur Verarbeitung personenbezogener Daten durch die OeNB finden Sie unter
<a href="https://www.oenb.at/datenschutz">www.oenb.at/datenschutz</a>. </div>
</body>
</html>