network namespaces netns
preparation
ufw disable
create namespapce
ip netns add red ip netns add blue
veth
ip link add veth-red type veth peer name veth-blue ip link set veth-red netns red ip link set veth-blue netns blue ip -n red addr add 192.168.15.1 dev veth-red ip -n blue addr add 192.168.15.2 dev veth-blue ip -n red link set veth-red up ip -n blue link set veth-blue up # delete ip -n red link del veth-red # show unattached veth ip -c link show type veth
bride