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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Ok, <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">I’ve discovered why this happens. It’s not particularly intuitive. The answer is here:
<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"><a href="https://www.py4u.net/discuss/127965">https://www.py4u.net/discuss/127965</a><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">It turns out that because I bound to 127.0.0.1 *<b>FIRST</b>*, not one of the non-localhost addresses, Socket’s sendTo function apparently did what’s mentioned in the above URL.<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">I would suggest that OSC please check the configuration to check that if BindAddress is set to 127.0.0.1 or ::1 *<b>before</b>* any other IPv4 or IPv6 entries, either warn or quit with an error?<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">:-)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:black;background:white;mso-fareast-language:EN-GB">Stefan Paetow</span><span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><br>
<span style="background:white">Federated Roaming Technical Specialist<o:p></o:p></span></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><br>
<span style="background:white">t: +44 (0)1235 822 125<br>
e-mail/teams: stefan.paetow@jisc.ac.uk</span><br>
<span style="background:white">gpg: 0x3FCE5142<o:p></o:p></span></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="font-size:11.0pt;color:black;background:white;mso-fareast-language:EN-GB">On Wednesdays and Fridays, I am not available between 12:00 noon and 15:00.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-GB">In line with government advice, at Jisc we’re now working from home and our offices are currently closed. Read our
<a href="https://www.jisc.ac.uk/about/corporate/coronavirus-statement"><span style="color:#0563C1">statement on coronavirus</span></a>.</span><span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><br>
<span style="background:white">jisc.ac.uk</span><br>
<br>
<span style="background:white">Jisc is a registered charity (number 1149740) and a company limited by guarantee which is registered in England under Company No. 5747339, VAT No. GB 197 0632 86. Jisc’s registered office is: One Castlepark, Tower Hill, Bristol,
BS2 0JA. T 0203 697 5800.<o:p></o:p></span></span></p>
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<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"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">radiator <radiator-bounces@lists.open.com.au> on behalf of Stefan Paetow <Stefan.Paetow@jisc.ac.uk><br>
<b>Date: </b>Friday, 7 January 2022 at 12:14<br>
<b>To: </b>"radiator@lists.open.com.au" <radiator@lists.open.com.au><br>
<b>Subject: </b>[RADIATOR] ERR: sendTo: send to <IP address> port 1812 failed: Invalid argument</span><span style="color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt">Hi,
</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt">Has anyone seen this error message before:</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt">ERR: sendTo: send to <IP address> port 1812 failed: Invalid argument</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt">This happens when I use the newest Radiator RPM on RedHat 8. I’ve done a debug log at Trace 5, so it is available, but it doesn’t give me any clues.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt">:-/</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt;color:black;background:white;mso-fareast-language:EN-GB">Stefan Paetow</span><span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><br>
<span style="background:white">Federated Roaming Technical Specialist</span></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt">
<span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><br>
<span style="background:white">t: +44 (0)1235 822 125<br>
e-mail/teams: stefan.paetow@jisc.ac.uk</span><br>
<span style="background:white">gpg: 0x3FCE5142</span></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt">
<span lang="EN-US" style="font-size:11.0pt;color:black;background:white;mso-fareast-language:EN-GB">On Wednesdays and Fridays, I am not available between 12:00 noon and 15:00.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span style="font-size:11.0pt;mso-fareast-language:EN-GB">In line with government advice, at Jisc we’re now working from home and our offices are currently closed. Read our
<a href="https://www.jisc.ac.uk/about/corporate/coronavirus-statement"><span style="color:#0563C1">statement on coronavirus</span></a>.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US" style="font-size:11.0pt;color:black;mso-fareast-language:EN-GB"><br>
<span style="background:white">jisc.ac.uk</span><br>
<br>
<span style="background:white">Jisc is a registered charity (number 1149740) and a company limited by guarantee which is registered in England under Company No. 5747339, VAT No. GB 197 0632 86. Jisc’s registered office is: One Castlepark, Tower Hill, Bristol,
BS2 0JA. T 0203 697 5800.</span></span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><span lang="EN-US"> </span><o:p></o:p></p>
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