Monday, September 18, 2017

networking - 14.04 no internet connection when I up the bridge interface (for LXC container)

I have VM Ubuntu 14.04 32bit running in VMware Workstation on Win 10.


I'm trying to set up the LXC container having its own IP address so I set the bridge interface in /etc/network/interfaces (tried static and dhcp):



# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto br0
iface br0 inet dhcp
bridge_ports eth0
bridge_fd 0
bridge_maxwait 0

But then I reboot it and have no internet on my host mashine Ubuntu.



--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 1999ms
pipe 3

But it can connect to the router and I can ssh it from my main OS (win 10)


my host ifconfig:



root@ubuntu:~# ifconfig
br0 Link encap:Ethernet HWaddr 00:0c:29:68:f1:39
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe68:f139/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:483 errors:0 dropped:0 overruns:0 frame:0
TX packets:180 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:39212 (39.2 KB) TX bytes:28823 (28.8 KB)
eth0 Link encap:Ethernet HWaddr 00:0c:29:68:f1:39
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:488 errors:0 dropped:0 overruns:0 frame:0
TX packets:268 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:46338 (46.3 KB) TX bytes:39955 (39.9 KB)
Interrupt:19 Base address:0x2000
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:128 errors:0 dropped:0 overruns:0 frame:0
TX packets:128 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:20434 (20.4 KB) TX bytes:20434 (20.4 KB)

I read all the similar posts but did not help. Any thoughts?

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