Hello, i have one problem. I have cisco router with one public ip addres and that cisco is connected to RB750. Public addres is assigned to Port ether1 and my lan is on ether2. I can Ping all web pages over ether1 port, but over ether2 can’t. I don’t have accsess to internet over Port ether2. Can someone help with this problem?
Thanks
Can you give a clearer description of how the items are connected? It isn’t clear with interfaces you are referring to or what the roles are given that two routers are involved.
This is scheme of my network, Ping from ether2 can’t go to ether1 or any web page. How add route that will allow communicatin beetwen ether2 and ether1.
I suspect that you need to masquerade outgoing traffic on ether1 in order to hide your private IPs on ether2.
Unfortunately I was not able to solve, I don’t get access to the internet over a LAN port. 
Which command whould solve my problem?
if you don’t have this in your mikrotik router, type it:
/ip firewall nat
add action=masquerade chain=srcnat disabled=no src-address=192.168.10.0/24
tahnks a lot, problem solved 