Problem Statement:
1) Ubuntu VM is unable to connect to internet. (eg. Can’t connect google)
2) Ubuntu VM is able to connect to Host and thus able to browse web sites internal to the company.
I have the following software on my Office Laptop.
1) OS Windows 7 Professional. (Host)
2) Oracle VirtualBox Version 4.3.2.
3) Ubuntu 12.04 Desktop LTS Virtual Machine (Guest)
The VirtualBox network setup for Ubuntu VM is as below:
Adapter 1
Attached to : “NAT”
Name: no name
Advanced
Adapter Type: Intel PRO/1000 MT Desktop (82540EM)
Promiscuous Mode: Allow VMS
MCA Address: 080027E2E304
Cable Connected is ticked
There is no port forwarding
Adapter 2
Attached to: Host-only Adapter
Name: VirtualBox Host-Only Ethernet Adapter
Advanced
Adapter Type: Intel PRO/1000 MT Desktop (82540EM)
Promiscuous Mode: Allow VMS
MCA Address: 080027B5740B
Cable Connected is ticked
There is no port forwarding
The guest is able to ping host and host is also able to ping guest. This could be the reason why guest is able to only access internal web sites. The main problem is guest is not able to browse web sites external to the office, i.e it cannot connect to internet. Following is the ifconfig output from ubuntu.
eth0
Link encap:Ethernet HWaddr 08:00:27:e2:e3:04
inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::a00
fee2:e304/64 Scope:LinkUP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:99 errors:0 dropped:0 overruns:0 frame:0
TX packets:291 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:17115 (17.1 KB) TX bytes:33151 (33.1 KB)
eth1
Link encap:Ethernet HWaddr 08:00:27:b5:74:0b
inet addr:192.168.56.101 Bcast:192.168.56.255 Mask:255.255.255.0
inet6 addr: fe80::a00
feb5:740b/64 Scope:LinkUP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:65 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3848 (3.8 KB) TX bytes:11496 (11.4 KB)
lo
Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:119 errors:0 dropped:0 overruns:0 frame:0
TX packets:119 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15122 (15.1 KB) TX bytes:15122 (15.1 KB)
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sudo nano /etc/network/interfaces shows me the following
auto lo iface
lo inet loopback
I have observed that, if I ping any web site for eg. ping google, i see that the ping command executes, but waits for the response. It doesn't show any error. So, I press ctrl+c and this is what I get.
PING google (173.194.38.146) 56(84) bytes of data.
^C
--- google ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 999ms
I am trying to figure out why Ubuntu VM doesnt connect to internet. Why Pinging to external web sites waits but doesnt return any error. Is it that Host is not able to send any response back, but proxy server would have sent back the packets to host to be sent to VM?