Estes mi /etc/network/interfaces
iface lo inet loopback

# Configurar interfaces manualmente, evitando conflictos con, por ejemplo, el administrador de red
auto enp3s0
#       iface enp3s0 inet dhcp
  iface enp3s0 inet static
                address 192.168.1.140
                broadcast 192.168.0.255
                netmask 255.255.255.0
                gateway 192.168.1.1
                dns-nameservers 8.8.8.8 8.8.4.4



# Configuración del puente
auto bt0
#       iface bt0 inet dhcp
  iface bt0 inet static
        bridge_ports enp3s0
                address 192.168.1.143
                broadcast 192.168.1.255
                netmask 255.255.255.0
                gateway 192.168.1.1
                dns-nameservers 8.8.8.8 8.8.4.4
==============
Desde Contenedor a Lan:
# ping 192.168.1.140
PING 192.168.1.140 (192.168.1.140) 56(84) bytes of data.
^C
--- 192.168.1.140 ping statistics ---
8 packets transmitted, 0 received, 100% packet loss, time 7147ms

# traceroute 192.168.1.140
traceroute to 192.168.1.140 (192.168.1.140), 30 hops max, 60 byte packets
 1  * * *
 2  * * *
 3  * * *
 4  * * *
.......
30  * * *
# traceroute 192.168.1.160
traceroute to 192.168.1.160 (192.168.1.160), 30 hops max, 60 byte packets
 1  * * *
 2  * * *
 ......
30  * * *


Desde Lan a contenedor:

$ ping 192.168.1.157
PING 192.168.1.157 (192.168.1.157): 56 data bytes
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
92 bytes from d9 (192.168.1.160): Destination Host Unreachable
^C--- 192.168.1.157 ping statistics ---
10 packets transmitted, 0 packets received, 100% packet loss

$ traceroute 192.168.1.157
traceroute to 192.168.1.157 (192.168.1.157), 30 hops max, 60 byte packets^[[F
 1  d9 (192.168.1.160)  3074.387 ms !H  3074.334 ms !H  3074.319 ms !H