在Linux建立namespace
sudo ip netns add ns1 sudo ip link add veth0 type veth peer name veth1 sudo ip link set veth1 netns ns1 sudo ip addr add 192.168.1.3/24 dev veth0 sudo ip link set veth0 up sudo ip link set dev veth0 addrss 02:42:C0:a8:01:03 sudo ip netns exec ns1 ip addr add 192.168.1.2/24 dev veth1 sudo ip netns exec ns1 ip addr sudo ip netns exec ns1 ip link set veth1 up ping 192.168.1.3 ping 192.168.1.2 sudo ip netns exec ns1 ping 192.168.1.3 sudo sysctl -w net.ipv4.ip_forward=1 sudo ip netns exec ns1 ip route add default via 192.168.1.3 sudo iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -j MASQUERADE sudo ip netns exec ns1 ping 8.8.8.8