Virtualbox - Activation of Network connection failed

Discussions about using Linux guests in VirtualBox.

Re: Virtualbox - Activation of Network connection failed

Postby sv » 3. Jan 2021, 21:01

Shrav wrote:Hi scottgus1, Thanks issue is resolved after assigning static route, Thanks for your valuble time supporting me.



Hi Shrav, could you share how/where did you assign static address ? Thanks
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Re: Virtualbox - Activation of Network connection failed

Postby scottgus1 » 4. Jan 2021, 04:33

Static IP addresses for Virtualbox Bridged connections are set up in the VM's OS, not in any Virtualbox setting. You would web-search your VM OS's help manuals and forums to find out how to set a static IP address, and set the adapter in the VM OS that is the bridged adapter, inside the VM's OS.
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Re: Virtualbox - Activation of Network connection failed

Postby JeffLearman » 5. Jul 2022, 16:22

I am seeing this issue, using my laptop host in a different home (different WiFi.) Ordinarily this works fine and I've used this host+guest in multiple locations with no issues, but no luck this time. I'd appreciate any pointers.

Code: Select all   Expand viewCollapse view
C:\Program Files\Oracle\VirtualBox>.\VboxManage.exe list hostonlyifs
Name:            VirtualBox Host-Only Ethernet Adapter
GUID:            50c00a5a-ff22-4aa0-8d70-e6a594f46944
DHCP:            Disabled
IPAddress:       192.168.56.1
NetworkMask:     255.255.255.0
IPV6Address:     fe80::ec1b:a54:7c2f:ebfd
IPV6NetworkMaskPrefixLength: 64
HardwareAddress: 0a:00:27:00:00:0a
MediumType:      Ethernet
Wireless:        No
Status:          Up
VBoxNetworkName: HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter


C:\Program Files\Oracle\VirtualBox>.\VboxManage.exe list dhcpservers
NetworkName:    HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter
Dhcpd IP:       192.168.56.100
LowerIPAddress: 192.168.56.101
UpperIPAddress: 192.168.56.254
NetworkMask:    255.255.255.0
Enabled:        Yes
Global Configuration:
    minLeaseTime:     default
    defaultLeaseTime: default
    maxLeaseTime:     default
    Forced options:   None
    Suppressed opts.: None
        1/legacy: 255.255.255.0
Groups:               None
Individual Configs:   None


Code: Select all   Expand viewCollapse view
jlearman@jlearman-VBox:~$ nmcli dev show
GENERAL.DEVICE:                         docker0
GENERAL.TYPE:                           bridge
GENERAL.HWADDR:                         02:42:7A:E2:86:02
GENERAL.MTU:                            1500
GENERAL.STATE:                          100 (connected)
GENERAL.CONNECTION:                     docker0
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/2
IP4.ADDRESS[1]:                         172.17.0.1/16
IP4.GATEWAY:                            --
IP4.ROUTE[1]:                           dst = 172.17.0.0/16, nh = 0.0.0.0, mt = 0
IP4.ROUTE[2]:                           dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP6.GATEWAY:                            --

GENERAL.DEVICE:                         enp0s3
GENERAL.TYPE:                           ethernet
GENERAL.HWADDR:                         08:00:27:1A:AC:FA
GENERAL.MTU:                            1500
GENERAL.STATE:                          30 (disconnected)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
WIRED-PROPERTIES.CARRIER:               on

GENERAL.DEVICE:                         lo
GENERAL.TYPE:                           loopback
GENERAL.HWADDR:                         00:00:00:00:00:00
GENERAL.MTU:                            65536
GENERAL.STATE:                          10 (unmanaged)
GENERAL.CONNECTION:                     --
GENERAL.CON-PATH:                       --
IP4.ADDRESS[1]:                         127.0.0.1/8
IP4.GATEWAY:                            --
IP6.ADDRESS[1]:                         ::1/128
IP6.GATEWAY:                            --
IP6.ROUTE[1]:                           dst = ::1/128, nh = ::, mt = 256


I've used this type of setup (Windows host + Ubuntu guest) at this location before, but this is a new host, and the guest configuration might also be different.
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Re: Virtualbox - Activation of Network connection failed

Postby JeffLearman » 5. Jul 2022, 16:34

Never mind -- I change the guest's VBox Network mode from Bridged to NAT and all seems OK. I believed I used Bridged mode to enable IP traffic between host and guest, but I don't need that now.

UPDATE: The reason I used Bridged mode is to allow the guest to use the host's VPN tunnel. Of course, I can set up the same tunnel under Ubuntu, but if there's an easy way to get bridged mode working please let me know.
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Re: Virtualbox - Activation of Network connection failed

Postby mpack » 5. Jul 2022, 16:48

JeffLearman wrote:UPDATE: The reason I used Bridged mode is to allow the guest to use the host's VPN tunnel.

That won't work. Two PCs cannot share one end of a VPN connection: you can only use the host's VPN if you use NAT, because in that case the VM is actually using the host's Internet connection.
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Re: Virtualbox - Activation of Network connection failed

Postby Prooxc » 1. Dec 2022, 03:50

Hi, I'm going through same problem 'Activation of Network connection failed'.
However it only happens if I try to use other host only adapters except the first one.
To give a clear picture i have following host only adapters and I got multiple machines which I want to be connected on different Host-Only adapters.
1. VirtualBox Host-Only Ethernet Adapter
2. VirtualBox Host-Only Ethernet Adapter #2
3. VirtualBox Host-Only Ethernet Adapter #3
4. VirtualBox Host-Only Ethernet Adapter #4

I tried using these adapter on other machines and issue remains the same.
When I did "VBoxManage list dhcpservers", Only first adapter has the DhcpId IP and all others shows 0.0.0.0. Refer to the dhcpservers file attached.
I think this might be the issues but not sure and dont know how to fix. Hope someone can help me out thanks.
Attachments
hostonlyifs.zip
also has a screen shot of adapters form Vbox
(98.4 KiB) Downloaded 1 time
dhcpservers.jpg
dhcpservers.jpg (120.6 KiB) Viewed 805 times
CentOS-2022-12-01-14-13-39.zip
(43.12 KiB) Downloaded 1 time
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