From owner-freebsd-net@freebsd.org Thu Nov 16 17:51:54 2017 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DDDFBDE4457 for ; Thu, 16 Nov 2017 17:51:54 +0000 (UTC) (envelope-from ml@netfence.it) Received: from smtp207.alice.it (smtp207.alice.it [82.57.200.103]) by mx1.freebsd.org (Postfix) with ESMTP id 748983EF3 for ; Thu, 16 Nov 2017 17:51:53 +0000 (UTC) (envelope-from ml@netfence.it) Received: from soth.ventu (79.40.26.62) by smtp207.alice.it (8.6.060.28) id 5A0BFD7B0037E9D2 for freebsd-net@freebsd.org; Thu, 16 Nov 2017 18:51:47 +0100 Received: from alamar.ventu (alamar.local.netfence.it [10.1.2.18]) by soth.ventu (8.15.2/8.15.2) with ESMTP id vAGHpk0T021214 for ; Thu, 16 Nov 2017 18:51:46 +0100 (CET) (envelope-from ml@netfence.it) X-Authentication-Warning: soth.ventu: Host alamar.local.netfence.it [10.1.2.18] claimed to be alamar.ventu From: Andrea Venturoli Subject: bridge0 not working when cable disconnected To: freebsd-net@freebsd.org Message-ID: <59452bf1-25fb-970d-1d8d-5ca1463da4fd@netfence.it> Date: Thu, 16 Nov 2017 18:51:38 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Nov 2017 17:51:55 -0000 Hello. I've got the following setup: re0: 192.168.x.1 (main IP) 192.168.x.2 (jail) 192.168.x.3 (jail) 192.168.x.4 (jail) tap0: VM-bhyve VM (using 192.168.x.9) bridge0: connecting re0 and tap0. The VM used to work properly. Now, however, I've got the network cable temporarily disconnected from re0 and the VM seems to be isolated: it can't reach 192.168.x.1 or any jail or anything else (192.168.x.1 is its gateway). tcpdump on tap0 or bridge0 show packets coming out of the VM, but no answer going in. Pinging 192.168.x.9 from the host yields "no route to host". Can the network cable disconnection be the reason? I'm asking here since the box is physically in another place and I cannot try this now, but would like to do some work before I go there. Any other hint, otherwise? bye & Thanks av.