Up ip コマンド 作成: 2021-02-03
更新: 2021-02-25

    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether b8:27:eb:49:40:35 brd ff:ff:ff:ff:ff:ff inet 192.168.1.150/24 brd 192.168.1.255 scope global eth0 valid_lft forever preferred_lft forever inet6 2400:4060:e62:a700:ba27:ebff:fe49:4035/64 scope global dynamic mngtmpaddr noprefixroute valid_lft 13538sec preferred_lft 13538sec inet6 fe80::ba27:ebff:fe49:4035/64 scope link valid_lft forever preferred_lft forever 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether b8:27:eb:1c:15:60 brd ff:ff:ff:ff:ff:ff inet 192.168.1.150/24 brd 192.168.1.255 scope global wlan0 valid_lft forever preferred_lft forever inet6 fe80::ba27:ebff:fe1c:1560/64 scope link valid_lft forever preferred_lft forever


    $ sudo ip link set eth0 down
    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000 link/ether b8:27:eb:49:40:35 brd ff:ff:ff:ff:ff:ff 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether b8:27:eb:1c:15:60 brd ff:ff:ff:ff:ff:ff inet 192.168.1.150/24 brd 192.168.1.255 scope global wlan0 valid_lft forever preferred_lft forever inet6 fe80::ba27:ebff:fe1c:1560/64 scope link valid_lft forever preferred_lft forever



    $ sudo ip link set eth0 up
    $ sudo ip link set wlan0 down
    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether b8:27:eb:49:40:35 brd ff:ff:ff:ff:ff:ff inet 192.168.1.150/24 brd 192.168.1.255 scope global eth0 valid_lft forever preferred_lft forever inet6 2400:4060:e62:a700:ba27:ebff:fe49:4035/64 scope global dynamic mngtmpaddr noprefixroute valid_lft 14369sec preferred_lft 14369sec inet6 fe80::ba27:ebff:fe49:4035/64 scope link valid_lft forever preferred_lft forever 3: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000 link/ether b8:27:eb:1c:15:60 brd ff:ff:ff:ff:ff:ff


    • eth0：有線LANアダプタ
    • wlan0：無線LANアダプタ
    • lo (local loopback) : local host ネットワーク
        127.0.0.1 : local loopback address (「localhost」)