<HTML><BODY><br><br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;">Вторник, 4 июля 2017, 20:56 +05:00 от "Roelf \"rewbycraft\" Wichertjes" <<a href="https://e.mail.ru/compose?To=mailings%2bwireguard@roelf.org" rel="noopener" data-mce-href="https://e.mail.ru/compose?To=mailings%2bwireguard@roelf.org">mailings+wireguard@roelf.org</a>>:<br><br><div><div><div><div>From what you said, I surmise the following setup:<br> - Three devices, A, B and C.<br> - A talks ospf to B over wireguard.<br> - A talks ospf to C over wireguard.<br> - The connection between A and C has gotten interrupted. (maybe C is a <br> laptop)<br> - The error causes the entire ospf process to fail for all interfaces.<br> In other words: A will suddenly also stop talking B when the <br> connection A<->C fails?</div></div></div></div></blockquote><span lang="en"><span>Not at all</span><br><span>A-B normally installed tunnels</span><br><span>A-C with never working tunnel - there was no connection setup never</span><br><span>Both tunnels are described with a direct indication of the other side's feast (ip port)</span><br><br><span>There is a blocking of the work of the demon's ospfd - because of "No buffer space available"</span><br><span>Ospf uses ONE socket to send its message to all interfaces - and this socket is blocked due to buffer overflow - which occurs when it sends packets to a non-starting tunnel</span><br></span><br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> If I am correct in that, there are a few things to note:<br> - The "No buffer space available" error is normal from wireguard when <br> an interface cannot reach the peer.</div></div></div></div></blockquote><span lang="en"><span>Can and normal - but it blocks ospfd - and as a result to use them together is simply impossible<br></span></span><span lang="en"><span>Would he rather have dropped them?</span></span><br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - A single "failing" interface shouldn't kill the ospf process for all <br> interfaces.</div></div></div></div></blockquote>not kill - blocked yes<br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - This sounds more like a quagga problem, as I have a similar setup (I <br> use my laptop for device C in my case) except I use the BIRD routing <br> daemon instead of quagga (and this setup works fine for me).</div></div></div></div></blockquote><span lang="en"><span>This is a problem with vireguard</span><br><span>No other tunnels - I did not allow myself to do this</span><br><span>About the inability to reach the addressee - packets just drop out</span><br><span>But here he accumulates and accumulate ....</span></span><br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> Of course, before any definitive conclusions can be made, we'll need a <br> bit more information. Could you possibly provide us with the following <br> pieces of information:<br> - What distribution are you using?</div></div></div></div></blockquote>debian9<br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - What kernel (version) are you using?</div></div></div></div></blockquote>4.9.30-2+deb9u2<br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - What wireguard version are you using?</div></div></div></div></blockquote>wireguard-0.0.20170613-1<br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - What quagga version are you using?</div></div></div></div></blockquote>0.99.23.1-1+deb8u3<br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - Please provide the kernel logs.</div></div></div></div></blockquote>empty<br><blockquote style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;" data-mce-style="border-left: 1px solid #0857A6; margin: 10px; padding: 0 0 0 10px;"><div><div><div><div><br> - Please provide the quagga logs.</div></div></div></div></blockquote>empty<br><br></BODY></HTML>