一、NAT(默认)
NAT网络模型，默认情况下，均为NAT模式，如网络的端口映射就为NAT
二、None(无网络)
格式：docker run --net=none
[root@docker ~]# docker run --rm -ti --net=none centos:centos7
三、Host(与主机相同IP)
格式：docker run --net=host
[root@docker ~]# docker run --rm -ti --net=Host centos:centos7
[root@docker /]# ifconfig
docker0: flags=4099 mtu 1500
inet 172.7.5.1 netmask 255.255.255.0 broadcast 172.7.5.255
inet6 fe80::42:28ff:fe56:8b6 prefixlen 64 scopeid 0x20
ether 02:42:28:56:08:b6 txqueuelen 0 (Ethernet)
RX packets 135990 bytes 9017234 (8.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 158771 bytes 317188403 (302.4 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens192: flags=4163 mtu 1500
inet 10.3.153.120 netmask 255.255.255.0 broadcast 10.3.153.255
inet6 fe80::36aa:b367:aa13:b475 prefixlen 64 scopeid 0x20
ether 00:50:56:9b:00:06 txqueuelen 1000 (Ethernet)
RX packets 747539 bytes 528246025 (503.7 MiB)
RX errors 0 dropped 1227 overruns 0 frame 0
TX packets 249250 bytes 38867074 (37.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
四、联合网络（即两个容器共用一个IP地址）
第一个容器运行
-----
[root@docker ~]# docker run --rm -ti centos:centos7 #以nat模式启动了一个容器
[root@2f504d6966dc /]# ifconfig
eth0: flags=4163 mtu 1500
inet 172.7.5.2 netmask 255.255.255.0 broadcast 172.7.5.255 #IP172.7.5.2
ether 02:42:ac:07:05:02 txqueuelen 0 (Ethernet)
RX packets 7417 bytes 13726936 (13.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6118 bytes 473182 (462.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
第二个容器运行，以联合网络的方式
-----
格式：Docker run —net=container:${container_id}
[root@docker ~]# docker ps #查看第一个容器的ID值
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2f504d6966dc centos:centos7 "/bin/bash" 6 minutes ago Up 6 minutes thirsty_bhabha
[root@docker ~]# docker run --rm -ti --net=container:2f504d6966dc centos:centos7
[root@2f504d6966dc /]# ifconfig
eth0: flags=4163 mtu 1500
inet 172.7.5.2 netmask 255.255.255.0 broadcast 172.7.5.255
ether 02:42:ac:07:05:02 txqueuelen 0 (Ethernet)
RX packets 15431 bytes 27381590 (26.1 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13359 bytes 1061065 (1.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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