[Openstack] sysctl fails

Sridhar Gaddam sgaddam at redhat.com
Thu Aug 13 16:07:44 UTC 2015


AFAIK yes, your OpenStack setup would work fine.
But the Security Group (including anti-spoofing) rules will not have any 
effect to the traffic that is generated by the VMs.

On 08/13/2015 04:49 PM, FASEELA.ASHRAF wrote:
> Is it necessary only for implementing security group policy? Even if I 
> don't set this, the open stack installation and a fully functional 
> openstack environment should work, isn't it?
>
> On Thu, Aug 13, 2015 at 2:01 PM, Sridhar Gaddam <sgaddam at redhat.com 
> <mailto:sgaddam at redhat.com>> wrote:
>
>     Neutron implements Security Groups by applying iptable rules on
>     Linux bridge. So, we need these parameters to be set.
>     Please see [1] for details.
>     [1] - https://bugs.launchpad.net/openstack-manuals/+bug/1359691
>
>
>     On 08/13/2015 01:50 PM, FASEELA.ASHRAF wrote:
>>     I installed the package bridge-utils and the error remains the
>>     same. In other versions of Openstack like Juno and kilo these lines:
>>
>>     net.bridge.bridge-nf-call-arptables=1
>>     net.bridge.bridge-nf-call-iptables=1
>>      net.bridge.bridge-nf-call-ip6tables=1
>>
>>     are not used in the sysctl file. So are they mandatory ?
>>
>>
>>
>>     On Thu, Aug 13, 2015 at 1:21 PM, Andreas Scheuring
>>     <scheuran at linux.vnet.ibm.com
>>     <mailto:scheuran at linux.vnet.ibm.com>> wrote:
>>
>>         Can you try the package bridge-utils?
>>
>>         On Do, 2015-08-13 at 11:15 +0530, FASEELA.ASHRAF wrote:
>>         > Hi ,
>>         >
>>         > I am trying to install a 3 node architecture of Openstack
>>         icehouse
>>         > version on my Ubuntu 14.04LTS . I would like to know if it is
>>         > necessary to add the following lines to sysctl.conf in
>>         network node.
>>         > net.bridge.bridge-nf-call-arptables=1
>>         > net.bridge.bridge-nf-call-iptables=1
>>         > net.bridge.bridge-nf-call-ip6tables=1
>>         >
>>         > When running the command sysctl -p following errors are shown :
>>         > sysctl: cannot stat
>>         /proc/sys/net/bridge/bridge-nf-call-arptables: No such file
>>         or directory
>>         > sysctl: cannot stat
>>         /proc/sys/net/bridge/bridge-nf-call-iptables: No such file or
>>         directory
>>         > sysctl: cannot stat
>>         /proc/sys/net/bridge/bridge-nf-call-ip6tables: No such file
>>         or directory
>>         >
>>         > Am I missing some package in my system?
>>         >
>>         >
>>         >
>>         > _______________________________________________
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>>
>>         --
>>         Andreas
>>         (IRC: scheuran)
>>
>>
>>
>>
>>
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