::/etc/pve/lxc/101.conf
arch: amd64
cores: 1
hostname: spv2
memory: 1536
net0: name=eth0,bridge=vmbr0,gw=192.168.2.1,hwaddr=16:E0:21:6E:03:B8,ip=192.168.2.147/24,tag=3,type=veth
net1: name=eth1,bridge=vmbr0,firewall=1,hwaddr=56:EF:41:5D:63:F7,ip=dhcp,ip6=dhcp,tag=2,type=veth
onboot: 1
ostype: ubuntu
rootfs: local-lvm:vm-101-disk-1,size=8G
swap: 1536

::/etc/network/interfaces
auto lo
iface lo inet loopback
iface lo inet6 loopback

# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

auto eth0
iface eth0 inet static
        address 192.168.2.147
        netmask 255.255.255.255
# — BEGIN PVE —
        post-up ip route add 192.168.2.1 dev eth0
        post-up ip route add default via 192.168.2.1 dev eth0
        pre-down ip route del default via 192.168.2.1 dev eth0
        pre-down ip route del 192.168.2.1 dev eth0
# — END PVE —