Date: Fri, 3 Jun 2016 17:11:24 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: freebsd-current@FreeBSD.org, freebsd-emulation@FreeBSD.org Subject: VirtualBox network connectivity broken on recent -CURRENT Message-ID: <201606040011.u540BODD045000@gw.catspoiler.org>
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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.
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