linux host and guest, guest does not see net adapter

vtorr · Post by **vtorr** » 4. Oct 2014, 20:55

I am a new vbox user, and am having trouble setting up linux guest networking.

Though i setup NIC1 with:

$ VBoxManage modifyvm "gateway" --memory 1024 --acpi on --boot1 dvd --nic1 bridged --bridgeadapter1 enp6s1f0 --ostype Redhat_64

the guest OS sees no network devices. By that i mean the below netinstall ISO sees no network devices to configure, nor if i setup with a full dvd can i activate a network device with tmui, etc. The kernel does not detect a network device for which to load a driver, it seems. I would paste the dmesg but i am using rdp to a headless vm so i am unable to copy it (at least with rdesktop).

Code: Select all

$ VBoxManage showvminfo d39e43fe-1df6-4bee-990f-1b550be1b437 --details
Name:            gateway
Groups:          /
Guest OS:        Red Hat (64 bit)
UUID:            d39e43fe-1df6-4bee-990f-1b550be1b437
Config file:     /home/test/drb/vm/gateway/gateway/gateway.vbox
Snapshot folder: /home/test/drb/vm/gateway/gateway/Snapshots
Log folder:      /home/test/drb/vm/gateway/gateway/Logs
Hardware UUID:   d39e43fe-1df6-4bee-990f-1b550be1b437
Memory size:     1024MB
Page Fusion:     off
VRAM size:       8MB
CPU exec cap:    100%
HPET:            off
Chipset:         piix3
Firmware:        BIOS
Number of CPUs:  1
PAE:             on
Long Mode:       on
Synthetic CPU:   off
CPUID overrides: None
Boot menu mode:  message and menu
Boot Device (1): DVD
Boot Device (2): DVD
Boot Device (3): HardDisk
Boot Device (4): Not Assigned
ACPI:            on
IOAPIC:          off
Time offset:     0ms
RTC:             local time
Hardw. virt.ext: on
Nested Paging:   on
Large Pages:     off
VT-x VPID:       on
VT-x unr. exec.: on
State:           aborted (since 2014-10-04T18:32:36.000000000)
Monitor count:   1
3D Acceleration: off
2D Video Acceleration: off
Teleporter Enabled: off
Teleporter Port: 0
Teleporter Address:
Teleporter Password:
Tracing Enabled: off
Allow Tracing to Access VM: off
Tracing Configuration:
Autostart Enabled: off
Autostart Delay: 0
Default Frontend:
Storage Controller Name (0):            IDE Controller
Storage Controller Type (0):            PIIX4
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0):  2
Storage Controller Port Count (0):      2
Storage Controller Bootable (0):        on
IDE Controller (0, 0): /opt/dtest/test/vm/gateway/gateway.vdi (UUID: db7fe326-fbc1-4fe9-a804-a212c32d38fa)
IDE Controller (1, 0): /home/test/CentOS-7.0-1406-x86_64-NetInstall.iso (UUID: 8f2b5065-f9f1-47c3-91e0-3dd98f8b54b5)
NIC 1:           MAC: 080027A9F227, Attachment: Bridged Interface 'enp6s1f0', Cable connected: on, Trace: off (file: none), Type: Am79C973, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: deny, Bandwidth group: none
NIC 2:           disabled
NIC 3:           disabled
NIC 4:           disabled
NIC 5:           disabled
NIC 6:           disabled
NIC 7:           disabled
NIC 8:           disabled
Pointing Device: PS/2 Mouse
Keyboard Device: PS/2 Keyboard
UART 1:          disabled
UART 2:          disabled
LPT 1:           disabled
LPT 2:           disabled
Audio:           disabled
Clipboard Mode:  disabled
Drag'n'drop Mode: disabled
VRDE:            disabled
USB:             disabled
EHCI:            disabled

USB Device Filters:

<none>

Available remote USB devices:

<none>

Currently Attached USB Devices:

<none>

Bandwidth groups:  <none>

Shared folders:  <none>

VRDE Connection:    not active
Clients so far:     0

Video capturing:    not active
Capture screens:    0
Capture file:       /home/test/drb/vm/gateway/gateway/gateway.webm
Capture dimensions: 1024x768
Capture rate:       512 kbps
Capture FPS:        25

Guest:

Configured memory balloon size:      0 MB

On the host:
$ ifconfig
enp6s1f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.9 netmask 255.255.255.254 broadcast 10.0.0.9
inet6 fe80::214:4fff:fea8:3d18 prefixlen 64 scopeid 0x20<link>
ether 00:14:4f:a8:3d:18 txqueuelen 1000 (Ethernet)
RX packets 3202283 bytes 4739946483 (4.4 GiB)
RX errors 0 dropped 90 overruns 0 frame 0
TX packets 477633 bytes 260590629 (248.5 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

Does vbox bridging perhaps not support /31 point to point ip? The host is connected to a router with address 10.0.0.8/31.