GW routing.

RouterOS General
1

Hello,

I want to route one of my LAN IP to an specified GW. I'm not sure where i should looking for settings, or least it is possible..?

ADDRESS--------------NETWORK---------INTERFACE

0 192.168.2.3/21--------192.168.0.0--------eth1-LAN1
1 10.10.10.111----------10.10.10.1----------eth2-WAN2
2 172.10.10.128/25-----172.10.10.128------eth2-WAN2
3 172.10.10.200---------172.10.10.200------eth2-WAN2


Scenario: internet side IP for 192.168.2.50 should be 172.10.10.128.
At the moment I have a random IP on outside.
For exchange server is important to have the same IP identity on internet, that why it is noy an option to have a random external IP.

If somebody can give me an advice i would be thankful.

2

It isn’t clear what you mean by “random”. Do you have multiple WAN/ISP connections?

3

Yes.
All of those IP from WAN2 is public IP from 1 ISP

4

The exact method that you use will depend on how you are currently using those multiple ISPs - e.g. are you load balancing across those ISPs? If so you can use mangle rules to identify connections from the Exchange server as belonging to a specific ISP route.

5

may i have an example of mangle rule?

6

http://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Mangle