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Multiple network interfaces for VirtualBox

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Is it possible to have both bridged mode and NAT enabled on a virtualbox linux guest? I want bridged adapter as the default one to access my guest's home directory from other computers on the network (using samba), and at the same time I need guest to access the host locally. Does this even make sense?

I tried enabling both adapters in VirtualBox and I can see both of them in my guest now. I can ping the first one (192.168.39.107) from my windows host but not the second one (10.0.3.15).

Code:

$ ifconfig
eth0      Link encap:Ethernet  HWaddr 08:00:27:10:ad:0d 
          inet addr:192.168.39.107  Bcast:192.168.39.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe10:ad0d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:302443 errors:0 dropped:0 overruns:0 frame:0
          TX packets:64619 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:113996112 (113.9 MB)  TX bytes:34120651 (34.1 MB)

eth1      Link encap:Ethernet  HWaddr 08:00:27:99:1c:13 
          inet addr:10.0.3.15  Bcast:10.0.3.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe99:1c13/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1477 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1785 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:930120 (930.1 KB)  TX bytes:215640 (215.6 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:65536  Metric:1
          RX packets:8864 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8864 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:19021832 (19.0 MB)  TX bytes:19021832 (19.0 MB)

My /etc/interfaces does not seem to have much in it:

Code:

$ more /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

And some other diagnostics (which don't make sense to me):

Code:

$ netstat -i
Kernel Interface table
Iface  MTU Met  RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0      1500 0    303846      0      0 0        64931      0      0      0 BMRU
eth1      1500 0      1478      0      0 0          1795      0      0      0 BMRU
lo        65536 0      8911      0      0 0          8911      0      0      0 LRU


$ netstat -r
Kernel IP routing table
Destination    Gateway        Genmask        Flags  MSS Window  irtt Iface
default        192.168.39.254  0.0.0.0        UG        0 0          0 eth0
10.0.3.0        *              255.255.255.0  U        0 0          0 eth1
link-local      *              255.255.0.0    U        0 0          0 eth1
192.168.39.0    *              255.255.255.0  U        0 0          0 eth0


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