Docker0 in containers with docker installed

Hi,

In the ubuntu desktop I have docker installed, it has:

docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:07:6d:41:06 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0

in a container(named: third), I installed docker too, this docker has nothing to do with the docker in the host, but lxc list shows same ip:

--------±--------±---------------------±----------------------------------------------±-----------±----------+
| third | RUNNING | 172.17.0.1 (docker0) | fd42:48ab:90bd:4118:216:3eff:feaf:eab6 (eth0) | PERSISTENT | |
| | | 10.39.98.53 (eth0) | | | |

I got confused about these two ip with same value, please help me understand this, thanks.

The docker0 address (172.17.0.1) is what is assigned by docker the 10.39.98.53 address is I am guessing assigned by LXD