[root@zoidberg ~]# lspci | grep -i realtek
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device c821

[root@zoidberg ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 54:e1:ad:3f:f1:89 brd ff:ff:ff:ff:ff:ff
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:83:fe:d7 brd ff:ff:ff:ff:ff:ff
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0 state DOWN mode DEFAULT group default qlen 1000
    link/ether 52:54:00:83:fe:d7 brd ff:ff:ff:ff:ff:ff

[root@zoidberg ~]# nmcli con show
NAME    UUID                                  TYPE            DEVICE
enp4s0  542ea0e0-1af3-3a4e-8d72-6d5d1888de49  802-3-ethernet  enp4s0
virbr0  81fa485c-babb-4625-9305-aee97fcd5522  bridge          virbr0