MAC Filtering - Giving the guest Internet access

[DaLynX]

I've sucessfully installed VBox on my Windows 7 computer, created a VM on which I installed Ubuntu.

The issue begins here :
I have read the user manual part about networking options. But I don't know if I understood it well.
I want my guest OS to be able to access the Internet. But on the network my PC is on, computers are given static IPs according to their MAC address, and any network adapter with unrecognized MAC addy won't be able to use the network.
So put simple : would it be possible for the guest system to use the host's network interface, keeping the same IP & MAC addresses ?

[Sasquatch]

NAT is just fine for your situation. It will use the Host to access internet in the same way your browser does it.

[DaLynX]

Okay I'm giving it a try. But it does not seem to work correctly. Guest can't ping Host and vice-versa.

Host configuration :

Code: Select all

Carte Ethernet VirtualBox Host-Only Network :

   Suffixe DNS propre à la connexion. . . :
   Adresse IPv4. . . . . . . . . . . . . .: 192.168.137.1
   Masque de sous-réseau. . . . . . . . . : 255.255.255.0
   Passerelle par défaut. . . . . . . . . :

Guest configuration:

Code: Select all

eth0      Lien encap:Ethernet  HWaddr 08:00:27:E9:DB:E1  
          inet adr:192.168.137.2  Bcast:192.168.137.255  Masque:255.255.255.0
          adr inet6: fe80::a00:27ff:fee9:dbe1/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:3 erreurs:0 :0 overruns:0 frame:0
          TX packets:192 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:214 (214.0 b) Octets transmis:13579 (13.2 KiB)
          Adresse de base:0xd010 Mémoire:f0000000-f0020000 

Any idea ?

Edit : I switched the guest settings to get it's IP automatically, and now the ping works. But Guest IP is inet adr:10.0.2.15 Bcast:10.0.2.255 Masque:255.255.255.0

[Sasquatch]

Use DHCP on the Guest. The IP address on the NAT interface can't handle static, especially if you don't give it the IP you would get through DHCP. If you need additional Host <> Guest connection, add another NIC attached to Host-Only.

[DaLynX]

Use DHCP on the Guest. The IP address on the NAT interface can't handle static, especially if you don't give it the IP you would get through DHCP. If you need additional Host <> Guest connection, add another NIC attached to Host-Only.

But my windows Host does not have a DHCP server, does it ?

Anyway it's working now. No idea where the Guest gets its IP settings from, but I can see Google's homepage.

[Sasquatch]

Maybe reading chapter 6 of the User Manual will enlighten you .

[DaLynX]

You're right, sorry for having bothered you, and thanks a lot for the help !

The virtual machine receives its network address and configuration on the private
network from a DHCP server integrated into VirtualBox. The IP address thus assigned
to the virtual machine is usually on a completely different network than the host. As
more than one card of a virtual machine can be set up to use NAT, the first card is
connected to the private network 10.0.2.0, the second card to the network 10.0.3.0
and so on. If you need to change the guest-assigned IP range for some reason, please
refer to chapter 9.12, Fine-tuning the VirtualBox NAT engine, page 138.