Когда интернет есть
[userm@host-2 ~]$ 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: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 44:8a:5b:d0:70:c4 brd ff:ff:ff:ff:ff:ff
inet 192.168.100.2/24 brd 192.168.100.255 scope global dynamic noprefixroute enp3s0
valid_lft 258834sec preferred_lft 258834sec
inet6 fe80::3b07:8092:a141:796f/64 scope link noprefixroute
valid_lft forever preferred_lft forever
[userm@host-2 ~]$
Когда интернета нет
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: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 44:8a:5b:d0:70:c4 brd ff:ff:ff:ff:ff:ff
inet6 fe80::3b07:8092:a141:796f/64 scope link noprefixroute
valid_lft forever preferred_lft forever
[userm@host-2 ~]$