Using Fedora or Ubuntu for the host with firewalls turned off on each side (vbox guest&host), what do I have to do to reach the guest machine using a NAT interface just like it would be with a bridged interface? (Only from the vbox host!)
Update: ifconfig on the host machine:
# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:41:56:6B:78:4E
inet addr:192.168.1.2 Bcast:.192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:271850 errors:0 dropped:0 overruns:0 frame:0
TX packets:144494 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:256776500 (244.8 MiB) TX bytes:10670238 (10.1 MiB)
Interrupt:16 Memory:fc500000-fc520000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:77698 errors:0 dropped:0 overruns:0 frame:0
TX packets:77698 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:104227086 (99.3 MiB) TX bytes:104227086 (99.3 MiB)
vboxnet0 Link encap:Ethernet HWaddr 0A:00:27:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Answers:
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Method 1
According to this documentation, current versions of VirtualBox do not expose the internal NAT interfaces to the host machine. You may configure special port forwarding rules to reach the boxes, but even the host is not able to reach the whole interface. You should used bridged networking for that.
Method 2
This command will forward all TCP traffic arriving on the localhost interface (127.0.0.1) via port 33890 to port 3389 in the guest
$ VBoxManage modifyvm "xp" --natpf1 "guestrdp,tcp,127.0.0.1,33890,,3389"
Method 3
I have not tested this on a linux host.
It sounds like you want to use NAT so your guest can get out onto the network, but also want to access the guest directly from the host without using port forwarding.
If you create two networks on the guest – one as a NAT or NAT Network, and the second as a host-only adapter – you can achieve this.
The NAT configuration allows your guest to get out, the host-only adapter lets your host get in.
I usually use NAT Networks, so my vms can talk to each other. In the Windows gui, both settings are managed under File->Preferences->Network
NAT Networks tab – add NAT Network. Edit it and give it a name or custom ip range if you want.
Host-Only Network tab – edit the default interface and make sure the ipv4 address is in the same network (but not in the dhcp range!) as the dhcp server tab is configured. mine didn’t match out of the box so networking didnt work.
All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0