Code: Select all
<NATNetwork networkName="MY_NAT" network="192.168.111.0/24" ipv6="0" ipv6prefix="fd17:625c:f037:2::/64" advertiseDefaultIPv6Route="0" needDhcp="1" enabled="1">
<PortForwarding4>
<Forwarding name="SSH" proto="1" hostip="127.0.0.1" hostport="2211" guestip="192.168.115.20" guestport="22"/>
</PortForwarding4>
<Mappings>
<Loopback4 address="127.0.0.1" offset="2"/>
</Mappings>
</NATNetwork>
I'm using NAT, because it is the only way for me to connect to the VM while I'm connected to my company's network through VPN.
This solution worked for a couple of months but now I'm getting the message: "Network error - Connection refused" when connecting to 127.0.0.1:2211 with putty or from the console using the "ssh" command.
I have made no change in the Virtual Box & VM configuration and unfortunately I don't know what else could have changed, so I tried the following things to understand/fix the problem:
- Executed "netstat -na -p tcp" on the command line -> Result: There is no listening socket for 127.0.0.1:2211 - so port forwarding seems not to work
- Changed hostip in VirtualBox port forwarding settings to 0.0.0.0 -> Doesn't work
- Asked a colleague to log in with his windows domain user account on my machine and try to connect -> Doesn't work
- Temporarily deactivated the firewall -> Doesn't work
- Tried to run the same VM + Configuration on a colleague's machine -> Port forwarding & SSH connection works fine (!)
- Used qemu on my machine with same port forwarding settings and image -> Port forwarding & SSH connection works fine (!)
- Finally I reinstalled my whole system, but the SSH connection still cannot be established
VBoxSVC.log (replaced company-specific IPs/domains by ...):
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01:55:19.258515 Launched VM: 77255088 pid: 16872 (0x41e8) frontend: GUI/Qt name: MY_VM
01:55:24.962176 Load [C:\Program Files (x86)\Sun xVM VirtualBox\ExtensionPacks\Oracle_VM_VirtualBox_Extension_Pack\win.amd64\VBoxHostWebcam.DLL] vrc=VINF_SUCCESS
01:55:25.195888 ERROR [COM]: aRC=VBOX_E_IPRT_ERROR (0x80bb0005) aIID={85632c68-b5bb-4316-a900-5eb28d3413df} aComponent={SessionMachine} aText={Saved screenshot data is not available (VERR_NOT_SUPPORTED)}, preserve=false aResultDetail=-37
01:55:25.584780 VM 'MY_VM' starts using NAT network 'MY_NAT'
01:55:25.584825 HostDnsMonitorProxy::GetDomainName: ...
01:55:25.585052 Saving settings file "C:\DATEN\Virtualbox\VirtualBox.xml" with version "1.14-windows"
01:55:25.592135 HostDnsMonitorProxy::GetNameServers:
01:55:25.592153 name server 1: ...
01:55:25.592161 name server 2: ...
01:55:25.592169 name server 3: ...
01:55:25.592399 Saving settings file "C:\DATEN\Virtualbox\VirtualBox.xml" with version "1.14-windows"
01:55:25.596664 Saving settings file "C:\DATEN\Virtualbox\VirtualBox.xml" with version "1.14-windows"
01:55:25.607645 NetworkServiceRunning: started 'VBoxNetDHCP.exe', pid 00004b20
01:55:25.614115 NetworkServiceRunning: started 'VBoxNetNAT.exe', pid 00002fcc
01:55:25.614167 Started NAT network 'MY_NAT'
Any idea what could be the problem or how I can debug it?