<div dir="ltr">I have 6 instances of libreswan running in Google Compute Engine with each terminating at varying firewall appliances (non-cloud).<div><div>Yesterday 3 of the 6 instances were inaccessible at the same time.</div><div>Each had "malformed payload in packet" messages (never before seen) in their ipsec.log file over the same period of time.</div><div>The instances all came back eventually without intervention.</div><div><br></div><div>Later in the afternoon Google Cloud Platform posted about connection issues covering my outage.<br><div>I will still look at upgrading but now don't think this particular issue was with libreswan.</div></div></div><div><br></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Mar 8, 2015 at 9:46 AM, Paul Wouters <span dir="ltr"><<a href="mailto:paul@nohats.ca" target="_blank">paul@nohats.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Sat, 7 Mar 2015, David M wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I am running the same libreswan/OS as the original poster and this morning<br>
had 3 libreswan instances (each to different Mcafee devices) become<br>
unresponsive.<br>
There is no prior mention of malformed packets in any of my ipsec.log files<br>
(goes back a few weeks) and hey have been reliable otherwise.<br>
<br>
Is there a changelog entry between 3.8.6 and 3.12 that addresses a malformed<br>
packet situation I can reference for moving to 7.1 just after it was<br>
released?<br>
</blockquote>
<br></span>
I don't know why a working scenario suddenly stops working. Did a<br>
restart fix anything? Or is it always failing now? Has there been<br>
a networking change? A firewall change? (perhaps related to fragments?)<br>
<br>
The changelog between 3.8 and 3.12 is big, and worth upgrading<br>
regardless.<span class="HOEnZb"><font color="#888888"><br>
<br>
Paul<br>
</font></span></blockquote></div><br></div>