Ip - Map
ip dhcp pool MAP-EXAMPLE host 192.168.1.100 255.255.255.0 hardware-address aabb.ccdd.eeff DNAT (map external IP to internal):
iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -j SNAT --to-source 203.0.113.10 map ip
sudo ip neigh add 192.168.1.100 lladdr aa:bb:cc:dd:ee:ff dev eth0 nud permanent Check mapping: ip dhcp pool MAP-EXAMPLE host 192
ip neigh show