via remote driver creates one network: admin, start a container with network admin, but got two IP, one is from admin, other is from a bridge which is automatically created

[yangzhares]

as title, i create a network: admin via remote driver, and start a container(docker run --rm -ti --net=admin busybox sh) with network admin, but got two IP, one is from admin, other is from a bridge which is automatically created by system. in fact, i want to get only one IP which should be from admin, how can avoid this?

~ # ifconfig
eth0 Link encap:Ethernet HWaddr FA:16:3E:A7:D6:70
inet addr:10.0.0.2 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:fea7:d670/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:13 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1038 (1.0 KiB) TX bytes:858 (858.0 B)

eth1 Link encap:Ethernet HWaddr 02:42:AC:12:00:02
inet addr:172.18.0.2 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::42:acff:fe12:2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:15 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:1170 (1.1 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)

[chenchun]

Libnetwork is about to providing an DisableGatewayService option in JoinResponse to disable default gateway bridge network, you can take a look at #778

[yangzhares]

cool