From owner-freebsd-emulation@freebsd.org Sat Jun 4 00:43:32 2016 Return-Path: Delivered-To: freebsd-emulation@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 0981FB6565C; Sat, 4 Jun 2016 00:43:32 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Received: from gw.catspoiler.org (unknown [IPv6:2602:304:b010:ef20::f2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "gw.catspoiler.org", Issuer "gw.catspoiler.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id DE5851996; Sat, 4 Jun 2016 00:43:31 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Received: from FreeBSD.org (mousie.catspoiler.org [192.168.101.2]) by gw.catspoiler.org (8.15.2/8.15.2) with ESMTP id u540hOVq045060; Fri, 3 Jun 2016 17:43:28 -0700 (PDT) (envelope-from truckman@FreeBSD.org) Message-Id: <201606040043.u540hOVq045060@gw.catspoiler.org> Date: Fri, 3 Jun 2016 17:43:24 -0700 (PDT) From: Don Lewis Subject: Re: VirtualBox network connectivity broken on recent -CURRENT To: freebsd-current@FreeBSD.org cc: freebsd-emulation@FreeBSD.org In-Reply-To: <201606040011.u540BODD045000@gw.catspoiler.org> MIME-Version: 1.0 Content-Type: TEXT/plain; charset=us-ascii X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Jun 2016 00:43:32 -0000 On 3 Jun, Don Lewis wrote: > It looks like something changed in -CURRENT to break network > connectivity to VirtualBox guests. This was last known to work with > r299139 (May 6th) and is definitely broken with r301229. The VirtualBox > port revisions are: > virtualbox-ose-4.3.38_1 > virtualbox-ose-kmod-4.3.38 > It looks like there was one change to the VirtualBox on May 9th, but it > looks unlikely to be the cause of the problem. > > The network settings are: > Attached to: Bridged Adapter > Name: re0 > Adapter Type: Paravirtualized Network (virtio-net) > Promiscuous Mode: Deny > MAC Address: [snip] > Ifconfig says that the interface is up, but I am unable to ping either > the host or anything else on the LAN from the guest. It looks like the > problem is with outbound traffic. If I attempt to ping the guest, the > source IP address and MAC address show up in the guest's arp table, but > ping reports: > ping: sendto: Host is down > That makes me think that the arp responses from the guest are not > getting transmitted. None of the machines involved are running > firewalls. If I ping from the guest, I don't see any arp requests on > the wire and the arp command shows the table entry as incomplete. > > The problem shows up with both FreeBSD -CURRENT and Debian guests. I see the same behaviour if I set: Attached to: NAT or Adapter Type: 82540EM