I find some networker or linux admin who can do following my requirement . I've two site of data center . and each site have it own gateway to using internet .Site A gateway number is 188.8.131.52 and Site B gateway number is 184.108.40.206 . My purpose is
"All computer in site A should be using ip address 118.175.28.x and using 220.127.116.11 as their gateway"
You can use any solution that can answer my purpose . But If you can config this solution on Mikrotik routeros , It will be advantage.
Please looking at attachment for network diagram