VirtualBox bridged networking stopped working after upgrading host to 11.1 RELEASE

[Mario Lobo]

On Wed, 2 Aug 2017 21:16:28 +0100
Mike Clarke <jmc-freebsd2 at milibyte.co.uk> wrote:

> I've been running Windows and FreeBSD VirtualBox guests with bridged
> networking without problems until I upgraded my host from 11.0 to
> 11.1. None of the guest systems are able to access the network since
> the upgrade. The Windows guests are not very forthcoming with useful
> error messages but the FreeBSD 11.0 guest shows the following while
> booting:
> 
> Starting dhclient.
> DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 6
> DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 20
> DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 15
> DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 17
> DHCPDISCOVER on em0 to 255.255.255.255 port 67 interval 3
> No DHCPOFFERS received.
> No working leases in persistent database - sleeping.
> 
> add host 127.0.0.1: gateway lo0 fib 0: route already in table
> add host ::1: gateway lo0 fib 0: route already in table
> add net fe80::: gateway ::1
> add net ff02::: gateway ::1
> add net ::ffff:0.0.0.0: gateway ::1
> add net ::0.0.0.0: gateway ::1
> Waiting 30s for the default route
> interface: .............................
> 
> It appears to be a problem with the virtual network interface rather
> than DHCP because I've tried editing /etc/rc.conf on the FreeBSD guest
> to turn off DHCP and provide an IP address and default root. When I do
> this the boot messages look OK and ifconfig and netstat show that the
> address and default route have been set up OK but any attempts to
> access the network just time out.
> 
> The problem appears to be specific to 11.1 because when I revert to
> 11.0 the bridged networking works fine.
> 
> As a temporary workaround I can use networking with VirtualBox if I
> switch to NAT instead of bridged but I need to find a way of going
> back to using the bridged connection so I can use the "correct" IP
> addresses for the guests.
> 

Hi;

I recently upgraded from 11.0 to 11.1

FreeBSD Papi 11.1-STABLE FreeBSD 11.1-STABLE #0 r321652: Sat Jul 29 

and immediately sfter, I recompiled vbox (5.1.26) and have no network
issues whatsoever (bridge,NAT,whatever..) with any guest OS type.

I believe you should try ports instead of packages.

Maybe is a RELEASE thing?

-- 
Mario Lobo
http://www.mallavoodoo.com.br
FreeBSD since 2.2.8 [not Pro-Audio.... YET!!]
 
"UNIX was not designed to stop you from doing stupid things, 
because that would also stop you from doing clever things."