docker - 无法更改docker容器的mac地址

Question

我尝试了以下

docker run -e lxc --lxc-conf="lxc.network.hwaddr=00:0C:29:88:30:CC" -i -t centos ifconfig

但是，正如您从我的outuput中看到的那样，它不会更改mac地址

eth0: flags=3<UP,BROADCAST>  mtu 1500
    inet 172.17.0.6  netmask 255.255.0.0  broadcast 0.0.0.0
    inet6 fe80::42:acff:fe11:6  prefixlen 64  scopeid 0x20<link>
    ether 02:42:ac:11:00:06  txqueuelen 1000  (Ethernet)
    RX packets 1  bytes 90 (90.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 1  bytes 90 (90.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
    inet 127.0.0.1  netmask 255.0.0.0
    inet6 ::1  prefixlen 128  scopeid 0x10<host>
    loop  txqueuelen 0  (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

我在Ubuntu上运行docker 1.3，并从centos7镜像生成了容器

Client version: 1.3.2
Client API version: 1.15
Go version (client): go1.3.3
Git commit (client): 39fa2fa
OS/Arch (client): linux/amd64
Server version: 1.3.2
Server API version: 1.15
Go version (server): go1.3.3
Git commit (server): 39fa2fa

我将很高兴为您成功更改容器中的Mac地址提供任何帮助。

Answer 1

如果查看https://github.com/docker/docker/blob/v1.4.1/vendor/src/github.com/docker/libcontainer/netlink/netlink_linux.go#L528上的docker代码，则会看到仅接受非广播的本地mac地址。在https://en.wikipedia.org/wiki/MAC_address中搜索“组织唯一标识符”以获取说明。实际上，这意味着MAC的第二个字符必须为2、6，A或E。

如果运行docker run --mac-address=00:0C:29:88:30:CC centos ifconfig，您应该会看到一条错误消息，该错误消息来自上述代码。