[lxc-users] re Networking issues with LXC containers in EC2

[Peter Steele]

On 01/12/2016 08:43 AM, Peter Steele wrote:
>
> On 01/12/2016 06:35 AM, brian mullan wrote:
>
>> Peter
>>
>> On AWS unless you are using VPC I don't think
>> you can use secondary addresses because AWS won't
>> route any of that traffic.  Also with your
>> addresses routing would be affected by the
>> split-horizon problem with the same network on 2
>> sides.
>>
>> ...
>>
>> I install PeerVPN (www.peervpn.net <http://www.peervpn.net>)
>> on my AWS servers to support inter-server LXC
>> communications.   Its dead simple to setup, its
>> auto-learning & full mesh vpn and you can then
>> interconnect not only LXC on multiple AWS servers but on
>> different Clouds like AWS & Digital Ocean and/or your
>> own servers at home/office.
>>
>> It also doesn't require firewall changes beyond what you
>> already use.
>>
>> Flockport did a nice
>> writeup on how to install/use PeerVPN 
>> <https://www.flockport.com/build-layer2-and-layer-3-overlay-networks-with-peervpn/>also. 
>>
>> Maybe that will help.
>>
> Brian, thanks for this pointer. It looks like this is what
> we'll need to solve our networking issues. However, I followed
> through Flockport's L2 example and configured
> peervpn on my two EC2 hosts but I still cannot ping containers
> across hosts. If I could indulge on your expertise I'd appreciate
> some pointers.
> ...
> The output from peervpn on host 2 also shows that one peer
> has connected, so it appears that my configuration is correct. Is
> there something else that's needed on the containers? The
> container IPs are all statically assigned and I don't need DHCP/dnsmasq
> support.
>
> Any advice would be appreciated.

I believe I solved the issue. I executed the command

ip link set dev peervpn0 master br0

on each host and I can now ping across my containers.

Thanks very much for pointing me to this tool. It never came up in any 
of the searches I did about networking between containers in EC2.

Peter

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