First of all I have to say Im not familiar with LXC. The developer team setup LXC on a server. There are a bunch of containers there and everything works well.
There is also an internal bridge with the config:
hostname:~$ lxc network show bridgeXXX config: ipv4.address: XXX.XXX.XXX.XXX/24 ipv4.nat: "true" ipv6.address: none ipv6.nat: "false" description: "" name: bridgeXXX type: bridge used_by: - /1.0/containers/XXX01 * * * - /1.0/containers/XXX10 managed: true status: Created locations: - none
So now the network parts which Im in charge. This LXC Server is connected on a switch which is on subnet CCC.CCC.CCC.CCC/24. Since LXC server attached to the network, when devices make a DHCP request on CCC subnet some times they get IP from LXC bridge subnet XXX/24. And that results the devices to not have internet access. Even the GateWay of XXX/24 is not answering via ICMP.
What can cause this issue? Anyone familiar with LXC can en-light me?