網橋的建立及分配ip

使用brctl建立和管理網橋

# brctl addbr docker1

# ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:50:56:8b:72:5b brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.91/24 brd 192.168.10.255 scope global eth1
    inet6 fe80::250:56ff:fe8b:725b/64 scope link 
       valid_lft forever preferred_lft forever
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/ether 86:03:a5:03:03:49 brd ff:ff:ff:ff:ff:ff
    inet 172.17.42.1/16 scope global docker0
    inet6 fe80::4cee:62ff:fefa:41a3/64 scope link 
       valid_lft forever preferred_lft forever
83: veth5e446ae: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 86:03:a5:03:03:49 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::8403:a5ff:fe03:349/64 scope link 
       valid_lft forever preferred_lft forever
86: veth280c957: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether b2:28:1b:ee:c9:ef brd ff:ff:ff:ff:ff:ff
    inet6 fe80::b028:1bff:feee:c9ef/64 scope link 
       valid_lft forever preferred_lft forever
88: docker1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN 
    link/ether 72:f7:13:d4:14:7f brd ff:ff:ff:ff:ff:ff

# ifconfig docker1 172.18.0.1/16 up

# ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:50:56:8b:72:5b brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.91/24 brd 192.168.10.255 scope global eth1
    inet6 fe80::250:56ff:fe8b:725b/64 scope link 
       valid_lft forever preferred_lft forever
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/ether 86:03:a5:03:03:49 brd ff:ff:ff:ff:ff:ff
    inet 172.17.42.1/16 scope global docker0
    inet6 fe80::4cee:62ff:fefa:41a3/64 scope link 
       valid_lft forever preferred_lft forever
83: veth5e446ae: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 86:03:a5:03:03:49 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::8403:a5ff:fe03:349/64 scope link 
       valid_lft forever preferred_lft forever
86: veth280c957: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether b2:28:1b:ee:c9:ef brd ff:ff:ff:ff:ff:ff
    inet6 fe80::b028:1bff:feee:c9ef/64 scope link 
       valid_lft forever preferred_lft forever
88: docker1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/ether 72:f7:13:d4:14:7f brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 brd 172.18.255.255 scope global docker1
    inet6 fe80::70f7:13ff:fed4:147f/64 scope link 
       valid_lft forever preferred_lft forever