[OpenIndiana-discuss] Vbox and nwam -no vboxnet0 ?

[Tony Brian Albers]

On 02/05/21 03:36 PM, Stephan Althaus wrote:
> On 02/05/21 14:09, Tony Brian Albers wrote:
>> Hi guys,
>>
>> I'm trying to get VirtualBox to work properly.
>>
>> In the main window, when I select Tools -> Network, I can see a network
>> called vboxnet0
>> The configuration says:
>> Adapter:
>>     IPv4 Address: 192.168.56.1
>>     IPv4 Network Mask: 255.255.255.0
>>
>> DHCP Server:
>>     Server Address: 192.168.56.100
>>     Server Mask: 255.255.255.0
>>     Lower Address Bound: 192.168.56.101
>>     Upper Address Bound: 192.168.56.254
>>
>> It seems to be working, I can use it in a VM, it's connected to Adapter
>> 2 and I can get a DHCP address and ping the DHCP server 192.168.56.100.
>>
>> But I can't connect to the host on 192.168.56.1, and on the host I
>> haven't got an interface that matches that network:
>>
>>    root at emu:~# ipadm show-if
>> IFNAME     STATE    CURRENT      PERSISTENT
>> lo0        ok       -m-v------46 ---
>> rge0       ok       bm--------4- ---
>> tun0       ok       -mp-------4- ---
>> root at emu:~#
>>
>> root at emu:~# nwamadm list -x
>> TYPE        PROFILE        STATE          AUXILIARY STATE
>> ncp         Automatic      disabled       disabled by administrator
>> ncp         Home           online         active
>> ncu:phys    rge0           online         interface/link is up
>> ncu:ip      rge0           online         interface/link is up
>> loc         Automatic      offline        conditions for activation are
>> unmet
>> loc         Home           online         active
>> loc         NoNet          offline        conditions for activation are
>> unmet
>> loc         User           disabled       disabled by administrator
>> root at emu:~#
>>
>> According to the documentation, it should be possible to connect from
>> the host to the VM on it's Host-only network address. But vboxnet0
>> doesn't seem to exist on the host.
>>
>> Any ideas?
>>
>> Thanks,
>>
>> /tony
>>
>>
>>
> Hi Tony!
> 
> I currently have a running vbox vm with bridged adapter,
> i have no special host-only things either.
> 
> My vm can reach each used ip on the local net.
> Maybe you hav to look elsewhere, ping, traceroute, route, ipfilter,.
> 
> ipadm show-if
> IFNAME     STATE    CURRENT      PERSISTENT
> lo0        ok       -m-v------46 ---
> e1000g4    ok       bm--------46 ---
> 
> $ ipadm show-addr
> ADDROBJ           TYPE     STATE        ADDR
> lo0/v4            static   ok           127.0.0.1/8
> e1000g4/_b        dhcp     ok           192.168.2.63/24
> lo0/v6            static   ok           ::1/128
> e1000g4/_a        addrconf ok fe80::a64c:c8ff:fe79:c2f2/10
> 

Hi Stephan,

Yes, I'm able to do that too. But my issue is that I need the VM to use 
a NAT network, and that makes it impossible to get to it from the host.

However, I have made a workaround:
1. Create a extra IP-address on the hosts interface, something like:
nwamcfg:ncp:Home> list ncu ip rge0
ncu:rge0
         type                    interface
         class                   ip
         parent                  "Home"
         enabled                 true
         ip-version              ipv4
         ipv4-addrsrc            static
         ipv4-addr               "172.16.1.9/24","172.16.3.9/24"
                                                  ^^^^^^^^^^^^^^^
         ipv4-default-route      "172.16.1.1"
nwamcfg:ncp:Home>

2. Attach adapter2(adapter1 is connected to 'NAT') in vbox vm to 
"bridged interface" -> the hosts interface rge0

3. Set a static IP on the new interface on the vm, don't specify a gateway:
enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state 
UP group default qlen 1000
     link/ether 08:00:27:de:11:d5 brd ff:ff:ff:ff:ff:ff
     inet 172.16.3.15/24 brd 172.16.3.255 scope global noprefixroute enp0s8

4. ssh from the host to 172.16.3.15  :)

/tony

P.S. The Host-only network _should_ be plumbed and configured on the 
host according to VirtualBox's docs: 
https://www.virtualbox.org/manual/ch06.html#network_hostonly

I suppose this might be a bug.

-- 
Tony Albers - Systems Architect - IT Development Royal Danish Library, 
Victor Albecks Vej 1, 8000 Aarhus C, Denmark
Tel: +45 2566 2383 - CVR/SE: 2898 8842 - EAN: 5798000792142