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<font face="monospace">Hallo Johannes!<br>
<br>
Villdank. I found that in the official bird documentation ya. We
will see to do that..<br>
<br>
Irene<br>
</font><br>
<div class="moz-cite-prefix">On 10/10/2023 12:20, Johannes Moos via
Bird-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:96C7ECE9-ADC7-4C68-91B0-AF63317262ED@de-cix.net">
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Hi Irene,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">You can adjust the linux source port range in </span><span
style="mso-fareast-language:EN-US">/proc/sys/net/ipv4/ip_local_port_range</span><span
style="mso-fareast-language:EN-US" lang="EN-US"> to be IANA
compliant.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">“</span><span
style="mso-fareast-language:EN-US">BFD packets are sent with
a dynamic source port number. Linux systems use by default a
bit different dynamic port range than the IANA approved one
(49152-65535). If you experience problems with
compatibility, please adjust
/proc/sys/net/ipv4/ip_local_port_range.</span><span
style="mso-fareast-language:EN-US" lang="EN-US">”<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">(from <a
href="https://bird.network.cz/?get_doc&v=20&f=bird.html#toc6.3"
moz-do-not-send="true">https://bird.network.cz/?get_doc&v=20&f=bird.html#toc6.3</a>)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">HTH!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-US">Johannes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div
style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:12.0pt;color:black">From: </span></b><span
style="font-size:12.0pt;color:black">Bird-users
<a class="moz-txt-link-rfc2396E" href="mailto:bird-users-bounces@network.cz"><bird-users-bounces@network.cz></a> on behalf of Irene
Lalioti <a class="moz-txt-link-rfc2396E" href="mailto:irene.lalioti@restena.lu"><irene.lalioti@restena.lu></a><br>
<b>Date: </b>Tuesday, 10. October 2023 at 11:20<br>
<b>To: </b>Maria Matějka <a class="moz-txt-link-rfc2396E" href="mailto:maria.matejka@nic.cz"><maria.matejka@nic.cz></a>,
BIRD Users <a class="moz-txt-link-rfc2396E" href="mailto:bird-users@network.cz"><bird-users@network.cz></a>, Marian Rychtecky
<a class="moz-txt-link-rfc2396E" href="mailto:mr@nix.cz"><mr@nix.cz></a><br>
<b>Subject: </b>Question Verification regarding UDP port
of BFD<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal">Hello dear Maria, Marian, and BIrd
community,<br>
<br>
<br>
I would like to ask you your feedback regarding an issue a
member of us has indicated. That member has stumbled upon a
non-RFC compliant BFD source port with result their CISCO
router to drop the BFD packets.<br>
Is it that Bird does not or does change the code to use a
different source port? We would need to see how to workaround
this issue.<br>
<br>
<span class="rynqvb"><span lang="CS">Předem moc děkuji!!</span></span><span
lang="CS"><br>
<span class="rynqvb">Hesky den!</span><br>
<span class="rynqvb">Irene</span><br>
</span><br>
<br>
<br>
<br>
<o:p></o:p></p>
<pre>-- <o:p></o:p></pre>
<pre>Irene Lalioti<o:p></o:p></pre>
<pre>Network Engineer<o:p></o:p></pre>
<pre>Fondation RESTENA<o:p></o:p></pre>
<pre>2, avenue de l'Université<o:p></o:p></pre>
<pre>L-4365 Esch/Alzette<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Tel: +352 424409 1<o:p></o:p></pre>
<pre>Fax: +352 422473<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>This email may contain information for limited distribution only, please treat accordingly.<o:p></o:p></pre>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Irene Lalioti
Network Engineer
Fondation RESTENA
2, avenue de l'Université
L-4365 Esch/Alzette
Tel: +352 424409 1
Fax: +352 422473
This email may contain information for limited distribution only, please treat accordingly.</pre>
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