root@debian-4gb-hel1-1:~# 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 noprefixroute
       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 92:00:07:c8:31:7a brd ff:ff:ff:ff:ff:ff
    altname enx920007c8317a
    inet 100.66.127.20/32 brd 100.66.127.20 scope global dynamic eth0
       valid_lft 86229sec preferred_lft 75429sec
    inet6 2a01:4f9:c014:b3fa::1/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::e9bb:b6c7:9f9a:ba22/64 scope link
       valid_lft forever preferred_lft forever