inet addr:172.25.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::42:acff:fe19:2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:86 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11780 (11.5 KiB) TX bytes:648 (648.0 B)
eth2 Link encap:Ethernet HWaddr 02:42:AC:11:00:03
inet addr:172.17.0.3 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::42:acff:fe11:3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:23 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3809 (3.7 KiB) TX bytes:648 (648.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
8.可以通过容器名称来相互连接
/ # ping -w 4 container3
PING container3 (172.25.3.3): 56 data bytes
64 bytes from 172.25.3.3: seq=0 ttl=64 time=0.077 ms
64 bytes from 172.25.3.3: seq=1 ttl=64 time=0.049 ms
64 bytes from 172.25.3.3: seq=2 ttl=64 time=0.047 ms
64 bytes from 172.25.3.3: seq=3 ttl=64 time=0.054 ms虽然container1 和 container2 都在bridge网络中，但是他们是不支持 容器名称通信的。
zane@zane-V:~$ docker attach container2
/ # ping container3
PING container3 (172.25.3.3): 56 data bytes
64 bytes from 172.25.3.3: seq=0 ttl=64 time=0.042 ms
64 bytes from 172.25.3.3: seq=1 ttl=64 time=0.050 ms
64 bytes from 172.25.3.3: seq=2 ttl=64 time=0.063 ms
--- container3 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.042/0.051/0.063 ms/ # ping -w 4 container1
ping: bad address 'container1'
/ # ping -w 4 172.17.0.2
PING 172.17.0.2 (172.17.0.2): 56 data bytes
64 bytes from 172.17.0.2: seq=0 ttl=64 time=0.104 ms
64 bytes from 172.17.0.2: seq=1 ttl=64 time=0.052 ms
64 bytes from 172.17.0.2: seq=2 ttl=64 time=0.127 ms
64 bytes from 172.17.0.2: seq=3 ttl=64 time=0.057 ms
--- 172.17.0.2 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 0.052/0.085/0.127 ms
注意退出attach 时，使用ctr-p + ctr-q.
如果使用ctr-d 则会stop container.
zane@zane-V:~$ docker attach container3
/ # ping -w 4 172.17.0.2
PING 172.17.0.2 (172.17.0.2): 56 data bytes--- 172.17.0.2 ping statistics ---
