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<p><font face="Gentium">Hello Skanda,</font></p>
<p><font face="Gentium">there are multiple solutions to this:</font></p>
<ul>
<li><font face="Gentium">you can just ignore the "unreachable" and
use "bgp_next_hop" attribute for display<br>
</font></li>
<li><font face="Gentium">you can set "ipv6 table it6; ipv4 table
it4;" on top-level, "igp table it6; igp table it4;" in the bgp
channel and …</font></li>
<ul>
<li><font face="Gentium">either re-generate the underlying
routes for next hops by static routes</font></li>
<li><font face="Gentium">or load the next hop routes by another
BGP / OSPF / Babel / RIP session from the edge router as
well<br>
</font></li>
</ul>
</ul>
<p><font face="Gentium">If you wish to get a more elaborate answer
and a proper technical support with guaranteed timelines, please
check our support packages at <a
href="https://bird.nic.cz/en/commercial-services/"
class="moz-txt-link-freetext">https://bird.nic.cz/en/commercial-services/</a>
and/or send me an off-list e-mail to get a customized quote.
Moreover, by getting a commercial support package, you're
keeping the project running.</font></p>
<p><font face="Gentium">Happy routing!<br>
Maria<br>
</font></p>
<div class="moz-cite-prefix">On 2024-03-02 15:21, skanda wrote:<br>
</div>
<blockquote type="cite"
cite="mid:008701da6cac$e3a1d6e0$aae584a0$@tpg.com.au">
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<div class="WordSection1">
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi
Bird users,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Any
assistance or guidance on the issue below ? your help will
be appreciated.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Skanda
Arasalingam<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> Bird-users
<a class="moz-txt-link-rfc2396E" href="mailto:bird-users-bounces@network.cz"><bird-users-bounces@network.cz></a> <b>On Behalf Of </b><a class="moz-txt-link-abbreviated" href="mailto:skanda@tpg.com.au">skanda@tpg.com.au</a><br>
<b>Sent:</b> Thursday, 29 February 2024 1:01 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:bird-users@network.cz">bird-users@network.cz</a><br>
<b>Subject:</b> iBGP and next hop - bird router<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Hi
Bird users,<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">I
need your kind assistance. We are running bird router in
container and peering with one of the edge routers using
iBGP. This for a looking glass.<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">All
the routes are becoming unreachable due to next hops since
the bird router is not feed with all the next hops in the
network. How can get the issue resolved ? I want to the
change the next hop on the bird router(I don’t want the
peering router to be next-hop-self.). Sofar, I am
unsuccessful. By hashing out disable under the protocol, we
see the interfaces in the routing table.<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">I
have done so far following things and unsuccessful.<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">protocol
direct {<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:red">#</span><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
disabled; # Disable by default<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
ipv4; # Connect to
default IPv4 table<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
ipv6; # ... and to
default IPv6 table<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">}<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">filter
looking_glass<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">if
( net ~ [ 0.0.0.0/0{0,32} ] ) then<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
{<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
bgp_next_hop = 10.252.40.X; (tried both VM or gateway
address for VM. Not successful sofar)<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
accept;<o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">
}<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Please
kindly advise for a working solution.<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif">Regards,<br>
Skanda Arasalingam<o:p></o:p></span></p>
<p><span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">PS: first time
Bird user<span
style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><br>
<br>
<o:p></o:p></span></p>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
Maria Matejka (she/her) | BIRD Team Leader | CZ.NIC, z.s.p.o.</pre>
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