Why is networking not working inside a Docker container?

Question

Computer networks

Good afternoon, for some reason the network from the docker container does not work

LSB Version:	n/a
Distributor ID:	ManjaroLinux
Description:	Manjaro Linux
Release:	20.0.1
Codename:	Lysia

3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:31:e0:65:74 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.1/8 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:31ff:fee0:6574/64 scope link 
       valid_lft forever preferred_lft forever
9: [email protected]: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether be:ed:0e:e1:53:29 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::bced:eff:fee1:5329/64 scope link 
       valid_lft forever preferred_lft forever

default via 192.168.0.1 dev enp2s0 proto dhcp metric 100 
10.0.0.0/8 dev docker0 proto kernel scope link src 10.0.0.1 
192.168.0.0/24 dev enp2s0 proto kernel scope link src 192.168.0.100 metric 100

What could be wrong?

Answer 1

The problem was solved in the following way. I just reset my bridge settings.

pkill docker
iptables -t nat -F
ifconfig docker0 down
brctl delbr docker0
systemctl restart docker

And then I explicitly specified in the file which network I want to use

/etc/docker/daemon.json 

{
  "bip": "172.26.0.1/16"
}