[Lxc-users] [lxc-users] How to bridge network to connect to multiple containers
Sujay M
sujay.m17 at gmail.com
Fri Jan 11 10:43:36 UTC 2013
>>>>Looks like a Routing Problem. Show me the output off route -n
*
root at vm0:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
0.0.0.0 10.0.2.2 0.0.0.0 UG 100 0 0 eth0
10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
root at host:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
0.0.0.0 10.0.2.2 0.0.0.0 UG 100 0 0 eth0
10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0
lxcbr0
192.168.56.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0
virbr0*
Thank you Chris for identifying the problem, The problem got solved.
Since there were two entries for 10.0.2.0 in the host machine. i deleted
the eth0 entry
route del -net 10.0.2.0 netmask 255.255.255.0 gw 0.0.0.0 dev eth0
, now all the nodes are communicating with each other. Thank you for the
help.
On 11 January 2013 15:51, Sujay M <sujay.m17 at gmail.com> wrote:
> Containers are able to ping other containers but container to host and
> host to container is not working. Please help me.
>
>
> On 11 January 2013 14:20, Sujay M <sujay.m17 at gmail.com> wrote:
>
>> Hi all,
>>
>> I am using Ubuntu 12.04 as Host OS. I have 4 LXC containers setup namely
>> vm0, vm1, vm2, vm3. I want to establish a network between these so that the
>> containers and host can communicate with each other. How can i do this? I
>> have pasted some of the outputs which may be useful.
>>
>> *root at host:~# cat /etc/network/interfaces
>> # This file describes the network interfaces available on your system
>> # and how to activate them. For more information, see interfaces(5).
>>
>> # The loopback network interface
>> auto lo
>> iface lo inet loopback
>>
>> # The primary network interface (VirtualBox Adapter 1 - NAT)
>> auto eth0
>> iface eth0 inet dhcp
>>
>> *
>> *# To to ssh to the ubuntu host (VirtualBox Adapter 2 - Host only)
>> *
>> *auto eth1
>> iface eth1 inet static
>> address 192.168.56.2
>> netmask 255.255.255.0
>>
>> auto lxcbr0
>> iface lxcbr0 inet dhcp
>> bridge_ports eth0
>> bridge_stp off
>> bridge_maxwait 5
>> post-up /usr/sbin/brtcl setfd lxcbr0 0
>>
>>
>> root at host:~# ifconfig
>> eth0 Link encap:Ethernet HWaddr 08:00:27:93:1c:ac
>> inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
>> inet6 addr: fe80::a00:27ff:fe93:1cac/64 Scope:Link
>> UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
>> RX packets:2877 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:2584 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:1691148 (1.6 MB) TX bytes:141792 (141.7 KB)
>>
>> eth1 Link encap:Ethernet HWaddr 08:00:27:6c:2e:6a
>> inet addr:192.168.56.2 Bcast:192.168.56.255 Mask:255.255.255.0
>> inet6 addr: fe80::a00:27ff:fe6c:2e6a/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:5684 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:4444 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:481447 (481.4 KB) TX bytes:648016 (648.0 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:671 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:671 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:0
>> RX bytes:113342 (113.3 KB) TX bytes:113342 (113.3 KB)
>>
>> lxcbr0 Link encap:Ethernet HWaddr 08:00:27:93:1c:ac
>> inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
>> inet6 addr: fe80::a00:27ff:fe93:1cac/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:1262 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:0
>> RX bytes:60342 (60.3 KB) TX bytes:2442 (2.4 KB)
>>
>> veth08H1r9 Link encap:Ethernet HWaddr ba:9b:26:18:6c:83
>> inet6 addr: fe80::b89b:26ff:fe18:6c83/64 Scope:Link
>> UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
>> RX packets:1365 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:1803 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:81055 (81.0 KB) TX bytes:1622144 (1.6 MB)
>>
>> virbr0 Link encap:Ethernet HWaddr 8a:3b:79:38:63:9e
>> inet addr:192.168.122.1 Bcast:192.168.122.255
>> Mask:255.255.255.0
>> UP BROADCAST MULTICAST MTU:1500 Metric:1
>> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:0
>> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
>>
>>
>> *
>> *
>>
>> *
>> All vm0, vm1, vm2, vm3 have same config, IP address and all produce the
>> same output
>> *
>> *
>> *root at vm0:~# ifconfig
>> eth0 Link encap:Ethernet HWaddr 00:16:3e:4b:89:83
>> inet addr:10.0.2.29 Bcast:10.0.2.255 Mask:255.255.255.0
>> inet6 addr: fe80::216:3eff:fe4b:8983/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:1850 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:1370 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:1625024 (1.6 MB) TX bytes:81485 (81.4 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:6 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:0
>> RX bytes:672 (672.0 B) TX bytes:672 (672.0 B)
>> *
>>
>> *root at vm0:~# cat /etc/network/interfaces
>> # This file describes the network interfaces available on your system
>> # and how to activate them. For more information, see interfaces(5).
>>
>> # The loopback network interface
>> auto lo
>> iface lo inet loopback
>>
>> auto eth0
>> iface eth0 inet dhcp
>>
>>
>> root at vm0:~# ping 192.168.56.2
>> PING 192.168.56.2 (192.168.56.2) 56(84) bytes of data.
>> 64 bytes from 192.168.56.2: icmp_req=1 ttl=63 time=1.63 ms
>>
>> root at vm0:~# ping google.com
>> PING google.com (173.194.36.4) 56(84) bytes of data.
>> 64 bytes from bom04s01-in-f4.1e100.net (173.194.36.4): icmp_req=1 ttl=63
>> time=172 ms
>> *
>> *
>> root at vm0:~# ping 10.0.2.15
>> PING 10.0.2.15 (10.0.2.15) 56(84) bytes of data.
>> From 10.0.2.29 icmp_seq=1 Destination Host Unreachable
>>
>>
>> *
>> also,
>> *
>> root at ubuntu:~# ping 10.0.2.29
>> PING 10.0.2.29 (10.0.2.29) 56(84) bytes of data.
>> From 10.0.2.15 icmp_seq=1 Destination Host Unreachable*
>>
>>
>> Please Help. Thanks in advance.
>>
>>
>> --
>> Best Regards,
>>
>> Sujay M
>> Final year B.Tech
>> Computer Engineering
>> NITK Surathkal
>>
>> contact: +918971897571
>>
>
>
>
> --
> Best Regards,
>
> Sujay M
> Final year B.Tech
> Computer Engineering
> NITK Surathkal
>
> contact: +918971897571
>
--
Best Regards,
Sujay M
Final year B.Tech
Computer Engineering
NITK Surathkal
contact: +918971897571
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