預設網橋

root@ubuntu18:~# ifconfig docker0
docker0: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        inet6 fe80::42:38ff:fefc:63bb  prefixlen 64  scopeid 0x20<link>
        ether 02:42:38:fc:63:bb  txqueuelen 0  (Ethernet)
        RX packets 1760023  bytes 3038351827 (3.0 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1505896  bytes 2216116087 (2.2 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
 

修改預設網段

root@ubuntu18:~# cat /etc/docker/daemon.json 
{
    "insecure-registries": [
        "0.0.0.0/0"
    ],
    "log-driver": "json-file",
    "log-opts": {
        "max-size": "10m",
        "max-file": "3"
    },
    "bip": "192.168.10.1/24"  # 新增此行指定需要配置的網段
}

重啟docker生效

systemctl restart docker