[lxc-users] Networking issue

[Saint Michael]

UPDATE
I was right after all in the first place. My network changed, but in
another subnet, not mine. What happens is that lxc networking mode=macvlan
stopped working or works intermittently. How do I know? because I started
using mode=phys, thus moving the interface inside the container, and all
problems went away. The Kernel or something started to drop the packets
that were destined to the same subnet. There is no iptables here, and also
I tested to rp_filter on and off, etc. No difference. Using tcpdump, I can
see the icmp requests and responses traveling back and forth through the
host, but never reaching their destination.
So LXC networking mode macvilan is not working after the latest Ubuntu host
updates.



On Wed, Nov 9, 2016 at 9:56 AM, Saint Michael <venefax at gmail.com> wrote:

> I SOLVED
> Many thanks to all. Using your input I concluded that the issue was not in
> LXC or the Kernel. In fact. the colo changed the subnets without telling me.
> Yours
> Federico
>
> ​
>
>
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