[CentOS] How can i share my WAN ip to my LAN?

[John R Pierce]

Tolun ARDAHANLI wrote:
> WAN(this ip comes from behind of swicth. the switch is behind of 
> firewall and firewall is behind of router):
> WAN side Server ip: 192.168.10.13 <http://10.10.1.223/>
> gateway address of Server:192.168.10.1 <http://10.10.1.111/>


if you already have a router/firewall and a switch on the internet side, 
what is this CentOS system doing in the middle?   why not just hook 
everything up to the same switch and let them all run with IP's from 
your existing router?

this is what you're describing...

internet -> router -> firewall -> switch----192.168.1.0/24 ---> centos 
server -----192.168.10.0/24----> LAN systems

why not....

   internet -> router -> firewall -> switch ----192.168.1.0/24--->  LAN 
including centos server


 ?