set static ip in linux code example
Example 1: linux set ip static
ip address add 172.16.251.1/24 brd + dev wlan0:0
Example 2: force eth0 to bind public ip
iptables -t nat -A POSTROUTING -d 192.168.1.100 -s 192.168.2.0/24 -j SNAT --to-source 192.168.2.100
iptables -t nat -A PREROUTING -d 192.168.1.100 -i eth0 -j DNAT --to-destination 192.168.1.1
iptables -t nat -A POSTROUTING -d 192.168.2.100 -s 192.168.1.0/24 -j SNAT --to-source 192.168.1.100
iptables -t nat -A PREROUTING -d 192.168.2.100 -i eth1 -j DNAT --to-destination 192.168.2.1