[Lxc-users] Problem with lxc and mutliple ips

[Jäkel, Guido]

Dear Andreas,

Thank you for the first clarification. But now I want to ask what exactly is not working:

* Are you trying to use more than one Containers with one IP or one Container with more than one IP? 
* Are you using the same subnets?
* From what location you can't "reach the IP", did this station list the right MAC in it's ARP table at least? 
* Can you reach the LXC host from there? Can you reach others from the Host? Can you reach the host or others from the Containers?
* Has your host an IP (on the bridge)? Is STP enabled, is the forward delay and hello time at an appropriate low value?
* Is the Host connected to a Switched Network? What did you observe here with respect to the used MACs / IPs?


Greetings

Guido

>-----Original Message-----
>From: Andreas Laut [mailto:andreas.laut at spark5.de]
>Sent: Friday, October 11, 2013 10:41 AM
>To: Jäkel, Guido; 'lxc-users at lists.sourceforge.net'
>Subject: Re: [Lxc-users] Problem with lxc and mutliple ips
>
>Ok, sorry. You're right.
>
>We are using a bridge named br0 bound to eth0 at lxc host. On the
>containers we are using veth, but this problem happens also with type
>macvlan. No change at all.
>
>We also tried using hwaddr.
>We're doing further research in hope to show a way to reproduce this for
>you.
>
>Andreas
>
>
>Am 11.10.2013 09:41, schrieb Jäkel, Guido:
>> Dear Andreas,
>>
>> please substantiate your term "start a lxc with multiple IPs" and the line "If we are using only one IP for LXC, all is fine": What kind of
>network setup do you use, is it e.g. a bridge on the lxc host and veth's on the containers?
>>
>> A guess might be that you have a MAC address clash; did you override the lxc.network.hwaddr?
>>
>> Guido
>>
>>> -----Original Message-----
>>> From: Andreas Laut [mailto:andreas.laut at spark5.de]
>>> Sent: Friday, October 11, 2013 8:53 AM
>>> To: lxc-users at lists.sourceforge.net
>>> Subject: [Spam-Wahrscheinlichkeit=45][Lxc-users] Problem with lxc and mutliple ips
>>>
>>> Dear list,
>>>
>>> we are using lxc 0.8 on Debian Wheezy (official debian package).
>>> Now we wanted to start a lxc with more than one IP address and we have
>>> gotten strange behaviors.
>>>
>>> As starting the lxc some IPs are reachable, some not. If we shut down
>>> the lxc and boot again, some other IPs are reachable. There seams no
>>> logic behind this. And - in no time - there were all IPs reachable.
>>>
>>> If we are using only one IP for LXC, all is fine.
>>>
>>> Do someone else have gotten this problem? All help and ideas are
>>> appreciated.