<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 16 Feb 2020, at 12:58, Neal Becker <<a href="mailto:ndbecker2@gmail.com" class="">ndbecker2@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">I'm testing wireguard<div class="">wireguard-0.0.20191219-2.fc31.x86_64 </div><div class="">between a Fedora 31 client and server, comparing to openvpn.</div><div class=""><br class=""></div><div class="">Openvpn is running between a linux client outside my lan and a server on my router, which is running dd-wrt.</div><div class="">I'm pinging between that linux client and another linux client within my lan.</div><div class=""><br class=""></div><div class="">wireguard is running between the same linux client outside my lan and the same other linux client within my lan. This</div><div class="">time router is simply forwarding packets via NAT.</div><div class=""><br class=""></div><div class="">Openvpn ping times are much lower (about 10ms) and much lower variance than wireguard. Wireguard pings</div><div class="">are all over the place.</div><div class=""><br class=""></div><div class="">Packets coming in from the WAN are traversing some firewall that I don't control, which may be affecting results. Openvpn</div><div class="">is config to use udp.</div><div class=""><br class=""></div><div class="">Any ideas?</div></div></div></blockquote><div><br class=""></div><div>I can think of two ways to investigate this.</div><div><br class=""></div><div>Use tcpdump on the router to see the timing of the packets on the wg0 device.</div><div>How quickly do you see the ICMP echo get answered?</div><div><br class=""></div><div>Use traceroute from the outside to find the ping times of all the hops on the path.</div><div>Is there a significant difference between the ping time on the edge of the router</div><div>and the wg0 device ping time?</div><div><br class=""></div><div>Barry</div><br class=""><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class=""><br class=""></div><div class="">Thanks,</div><div class="">Neal<br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><i class="">Those who don't understand recursion are doomed to repeat it</i></div></div></div></div>
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