From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: rcwhelan@gmail.com Received: from krantz.zx2c4.com (localhost [127.0.0.1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id c0d82d2d for ; Fri, 25 May 2018 14:49:14 +0000 (UTC) Received: from mail-qt0-x231.google.com (mail-qt0-x231.google.com [IPv6:2607:f8b0:400d:c0d::231]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id c15d78a0 for ; Fri, 25 May 2018 14:49:14 +0000 (UTC) Received: by mail-qt0-x231.google.com with SMTP id m5-v6so6873055qti.1 for ; Fri, 25 May 2018 07:50:43 -0700 (PDT) MIME-Version: 1.0 From: Ryan Whelan Date: Fri, 25 May 2018 10:50:31 -0400 Message-ID: Subject: Dead peer detection To: WireGuard mailing list Content-Type: text/plain; charset="UTF-8" List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I thought this conversation had been had in the past, but I can not find it so forgive me if I'm rehashing something thats been discussed already. How do you guys detect dead peers? Actively via a ping or passively via the 'latest handshake' (once it gets past a certain age, you assume the peer is offline). Are their other options?