Use macvlan to emulate multiple hardware devices on network

I am trying to use linux's network name spaces to emulate multiple devices on my local network. I want this to appear as actual network devices, not my laptops IP masquerading on the subnet. Is this possible? I want to use these namespaces to launch a couple of bash scripts that have internet access, i.e: sudo ip netns exec netns1 myscript1.sh sudo ip netns exec netns2 myscript2.sh I am working on a script to create the virtual network. At the moment I am only attempting to make on namespace:

INTERFACE=enp59s0
IP1=192.168.2.101/24

# create macvlan and associate it to network device in bride mode
ip link add macvlan1 link $INTERFACE type macvlan mode bridge

# create new network namespace
ip netns add netns1

# associate the macvlan to the new namespace
ip link set macvlan1 netns netns1

# Set IP address
ip -n netns1 addr add $IP1 dev macvlan1

# set macvlan to up
ip netns exec netns1 ifconfig macvlan1 up

This lets me ping devices within my subnet, i.e. the following works sudo ip netns exec netns1 nmap -sn 192.168.2.1-255 However, when I cannot ping the virtual device from default namespace. In addition, adding the router to route still does not let me connect to the outside world:

sudo ip netns exec netns1 ip route add default via 192.168.2.1
sudo ip netns exec netns1 ping 8.8.8.8

From 192.168.2.1 icmp_seq=1 Destination Net Unreachable

Any ideas? Is this the right approach? Would it be better to alias an IP with ifconfig: ifconfig enp59s0:0 192.168.2.101 up And then bind the new interface to a namespace somehow?