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<p class="MsoNormal"><span lang="EN-US">Dear users of the Bird internet routing daemon,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">First of all I am sorry for my e-mail which I have sent some minutes before.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">It was a mistake and you can ignore my last mail.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Now to my question:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I want my OSPF to distribute the default-route ONLY and ONLY if the ISP is available.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Means, if the link, or the IP isn’t available, my OSPF should be quite.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Further information:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ISP (ISP is up)
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> l (Link is up)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">R1 (Interface is up)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">R1: everything is ok, I can reach the ISP, so I am the default-gateway for everybody below me.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ISP (ISP is down)
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> l (Link is up)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">R1 (Interface is up)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">R1: Oh gosh! The ISP is down! I am now no longer the default-gateway for everybody below me.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ISP (ISP is up)
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> l (Link is down)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">R1 (Interface is up)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">R1: Oh, I can’t reach my ISP… Ok, I need to stop telling everybody below me I am the default-gateway.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I was thinking about the bfd protocol, but bfd is kinda new and you can’t run more than one instance in bird.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So I need another solution…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Btw, yes I’ve already searched for these problem in the mailing list but I am not satisfied.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Either my keywords were wrong or there isn’t any person with this kind of problem… yet.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank you very much for reading.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regards.<o:p></o:p></span></p>
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