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【Hyper-V】Hyper-V上のCentOS8にネットワークデバイスを追加しても自動的に仮想ネットワークインターフェースが作られない

Hyper-V

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2021年2月18日
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＜スポンサーリンク＞

問題

このようにOS作成後にネットワークインターフェースを追加しても自動認識しない

nmcliで作る

nmcli connection add type ethernet ifname eth1 con-name eth1
nmcli connection modify eth1 ipv4.address 172.16.0.2/24
nmcli connection modify eth1 ipv4.method manual
nmcli connection up eth1

nmcli connection add type ethernet ifname eth1 con-name eth1

nmcli connection modify eth1 ipv4.address 172.16.0.2/24

nmcli connection modify eth1 ipv4.method manual

nmcli connection up eth1

確認

[root@aaaa ~]# ip a 
1: lo: &lt;LOOPBACK,UP,LOWER_UP&gt; 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: &lt;BROADCAST,MULTICAST,UP,LOWER_UP&gt; mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:15:5d:0b:c9:05 brd ff:ff:ff:ff:ff:ff
    inet 192.168.11.208/24 brd 192.168.11.255 scope global noprefixroute eth0
       valid_lft forever preferred_lft forever
    inet6 240d:1a:76e:800:5397:a6f9:8481:e895/64 scope global dynamic noprefixroute 
       valid_lft 7502sec preferred_lft 7502sec
    inet6 fe80::5854:f022:4e88:61d1/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: eth1: &lt;BROADCAST,MULTICAST,UP,LOWER_UP&gt; mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:15:5d:0b:c9:0a brd ff:ff:ff:ff:ff:ff
    inet 172.16.0.2/24 brd 172.16.0.255 scope global noprefixroute eth1
       valid_lft forever preferred_lft forever
    inet6 fe80::a1c2:78aa:a19f:5a48/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

[root@aaaa ~]# 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