<div dir='auto'><div>Could be a long shot, but maybe a reverse DNS lookup timeout?<div dir="auto"><br></div><div dir="auto">Though I think that threshold is quite a bit shorter than the period you mentioned.</div><br><div class="gmail_extra"><br><div class="gmail_quote">On May 28, 2020 2:19 PM, Mike Wayne <semibug15@post.wayne47.com> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">I'm hoping someone can suggest where I should look to debug this. Here's the
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setup:
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FreeBSD client---EdgeRouter 1 (OpenVPN version 2.4.0)---FreeBSD server #1 (OpenVPN version 2.4.8) Fails
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FreeBSD client------------------------------------------FreeBSD server #1 (via public IP) Works
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FreeBSD client---Edgerouter 2 (OpenVPN version 2.3.2)---FreeBSD server #2 (OpenVPN version 2.4.4) Works
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In all of the above the client is the same.
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The problem is that ssh is timing out after ~55 seconds. Nothing in the
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openVPN logs. The link remains up and running; if I ping, it is not
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interrupted.
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I do not think it's MTU because it happens even with no traffic
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going across the link, just sitting at a shell prompt after login.
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It >feels< like an ssh timeout issue but I can't figure out where I
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should look to start to debug it.
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Any thoughts?
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</blockquote></div><br></div></div></div>