[lxc-users] Container doesn't connect to bridge
Joshua Schaeffer
jschaeffer0922 at gmail.com
Fri Oct 23 19:41:49 UTC 2015
Oh, also forgot to mention that I'm using OVS to create the bridge. I
didn't think this would be a problem if I got the bridge working on the
host, but let me know if I've missed something.
Thanks,
Joshua
On Fri, Oct 23, 2015 at 1:36 PM, Joshua Schaeffer <jschaeffer0922 at gmail.com>
wrote:
> Here ya go. It looks like the routing table is off for the container or am
> I just misreading that. Also I assigned the veth an mac address from the
> config file. Everything still appears to be the same, no change.
>
> Host:
> jschaeffer at prvlxc01:~$ sudo route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 0.0.0.0 192.168.54.1 0.0.0.0 UG 0 0 0 br0
> 192.168.54.0 0.0.0.0 255.255.255.128 U 0 0 0 br0
>
> jschaeffer at prvlxc01:~$ 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).
>
> source /etc/network/interfaces.d/*
>
> # The loopback network interface
> auto lo
> iface lo inet loopback
>
> allow-ovs br0
> iface br0 inet static
> address 192.168.54.65
> netmask 255.255.255.128
> gateway 192.168.54.1
> ovs_type OVSBridge
> ovs_ports eth0
>
> # The primary network interface
> allow-br0 eth0
> iface eth0 inet manual
> ovs_bridge br0
> ovs_type OVSPort
>
>
>
> Container:
> root at thinkweb:~# route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 192.168.54.0 0.0.0.0 255.255.255.128 U 0 0 0
> eth0
>
> root at thinkweb:~# arp -n
> Address HWtype HWaddress Flags Mask
> Iface
> 192.168.54.65 ether 00:50:56:be:13:94 C
> eth0
> 192.168.54.1 ether 00:13:c4:f2:64:41 C
> eth0
>
>
> On Fri, Oct 23, 2015 at 12:23 PM, Benoit GEORGELIN - Association Web4all <
> benoit.georgelin at web4all.fr> wrote:
>
>> Hi,
>>
>> can you provide from the host and from the container :
>>
>> route -n
>>
>> can you provide from the container :
>>
>> arp -n
>>
>> can you also give the bridge configuration from /etc/network/interfaces
>>
>> LXC configuration looks good to me .
>> I would try to set the mac address manually in the configuration file
>> like :
>>
>> lxc.network.hwaddr = fe:fa:9c:21:8d:0b
>>
>> Cordialement,
>>
>> Benoît Georgelin -
>> Afin de contribuer au respect de l'environnement, merci de n'imprimer ce
>> mail qu'en cas de nécessité
>>
>> ------------------------------
>> *De: *"Joshua Schaeffer" <jschaeffer0922 at gmail.com>
>> *À: *"lxc-users" <lxc-users at lists.linuxcontainers.org>
>> *Envoyé: *Vendredi 23 Octobre 2015 13:40:35
>> *Objet: *[lxc-users] Container doesn't connect to bridge
>>
>> I have a lxc container on version 1.1.2 on Debian that cannot connect to
>> the network. My host has br0 setup and I can access any machine on the
>> network and internet from the host:
>>
>> This is the host:
>> jschaeffer at prvlxc01:~$ sudo ifconfig
>> [sudo] password for jschaeffer:
>> br0 Link encap:Ethernet HWaddr 00:50:56:be:13:94
>> inet addr:192.168.54.65 Bcast:192.168.54.127
>> Mask:255.255.255.128
>> inet6 addr: fe80::250:56ff:febe:1394/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:9891 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:4537 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:0
>> RX bytes:4078480 (3.8 MiB) TX bytes:521427 (509.2 KiB)
>>
>> eth0 Link encap:Ethernet HWaddr 00:50:56:be:13:94
>> inet6 addr: fe80::250:56ff:febe:1394/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:10872 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:5085 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:4159749 (3.9 MiB) TX bytes:575863 (562.3 KiB)
>>
>> 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: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)
>>
>> vethAGP5QO Link encap:Ethernet HWaddr fe:fa:9c:21:8d:0b
>> inet6 addr: fe80::fcfa:9cff:fe21:8d0b/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:536 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:3013 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:49648 (48.4 KiB) TX bytes:332247 (324.4 KiB)
>>
>> From the container I cannot even reach the gateway:
>>
>> This is the container:
>> root at thinkweb:/# ifconfig
>> eth0 Link encap:Ethernet HWaddr aa:0a:f7:64:12:db
>> inet addr:192.168.54.110 Bcast:192.168.54.127
>> Mask:255.255.255.128
>> inet6 addr: fe80::a80a:f7ff:fe64:12db/64 Scope:Link
>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>> RX packets:3194 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:536 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:1000
>> RX bytes:352314 (344.0 KiB) TX bytes:49648 (48.4 KiB)
>>
>> 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:4 errors:0 dropped:0 overruns:0 frame:0
>> TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
>> collisions:0 txqueuelen:0
>> RX bytes:336 (336.0 B) TX bytes:336 (336.0 B)
>>
>> root at thinkweb:/# ping 192.168.54.1
>> PING 192.168.54.1 (192.168.54.1) 56(84) bytes of data.
>> ^C
>> --- 192.168.54.1 ping statistics ---
>> 7 packets transmitted, 0 received, 100% packet loss, time 6049ms
>>
>> jschaeffer at prvlxc01:~$ cat /var/lib/lxc/thinkweb/config
>> cat: /var/lib/lxc/thinkweb/config: Permission denied
>> jschaeffer at prvlxc01:~$ sudo cat /var/lib/lxc/thinkweb/config
>> # Template used to create this
>> container: /usr/share/lxc/templates/lxc-download
>> # Parameters passed to the template: -d debian -r jessie -a amd64
>> # For additional config options, please look at lxc.container.conf(5)
>>
>> # Distribution configuration
>> lxc.include = /usr/share/lxc/config/debian.common.conf
>> lxc.arch = x86_64
>>
>> # Container specific configuration
>> lxc.rootfs = /var/lib/lxc/thinkweb/rootfs
>> lxc.utsname = thinkweb
>> lxc.tty = 4
>> lxc.pts = 1024
>> lxc.cap.drop = sys_module mac_admin
>> mac_override sys_time
>> # When using LXC with apparmor, uncomment the next line to run
>> unconfined:
>> #lxc.aa_profile = unconfined
>>
>> # Network configuration
>> lxc.network.type = veth
>> lxc.network.flags = up
>> lxc.network.link = br0
>> lxc.network.ipv4 = 192.168.54.110/25
>> lxc.network.name = eth0
>>
>> ## Limits
>> lxc.cgroup.cpu.shares = 1024
>> lxc.cgroup.cpuset.cpus = 0,1,2,3
>> lxc.cgroup.memory.limit_in_bytes = 2G
>> #lxc.cgroup.memory.memsw.limit_in_bytes = 3G
>>
>>
>> Thanks,
>> Joshua
>>
>> _______________________________________________
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>> lxc-users at lists.linuxcontainers.org
>> http://lists.linuxcontainers.org/listinfo/lxc-users
>>
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>>
>
>
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