rabbit5151 https://blog.hatena.ne.jp/rabbit5151/ rabbit51 https://rabbit51.hatenadiary.jp/ NVR510 Wireless端末からのL2TP/IPSec接続で「意図しない回線切断」が発生した時に「L2TP Keepalive機能」が有効に働く。 RFC2661/RFC3931では、RFC2661 5.5 Keepalive (Hello) This is accomplished by injecting Hello control messages after a specified period of time has elapsed since the last data or control message was received on a tunnel. RFC3931 4.4. Ke… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Frabbit51.hatenadiary.jp%2Fentry%2F2020%2F12%2F17%2F083000" title="NVR510 L2TP/IPSecのl2tp keepalive機能がRFC2661/3931に準じていない事による振舞い - rabbit51" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/r/rabbit5151/20250523/20250523234353.png Hatena Blog https://hatena.blog 2020-12-17 08:30:00 rich https://rabbit51.hatenadiary.jp/entry/2020/12/17/083000 1.0 100%