# apt install bridge-utils


root@debian:~/bridge# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# 板载网卡
auto eno1
iface eno1 inet manual


# 桥接网卡
auto br0
iface br0 inet dhcp
    hwaddress ether 98:90:96:d3:CD:AE
    bridge_ports eno1

root@debian:~/bridge#