Category Archives: Mikrotik

How to run multiple networks from a Mikrotik

5 Port Router?

Since a Mikrotik (example being a 750GL) is a true 5 port router and not just a consumer-grade router (which is actually a router with 4 port switch), you can set them up to run multiple networks, use multiple ISPs for WAN failover, and more.  Why you would want to do any of these things is beyond the scope of this post, but this will show you how to do it.

Let’s take an RB750GL and have it run 4 internal networks instead of one.  Like this:

Continue reading How to run multiple networks from a Mikrotik

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Mikrotik port mapping/forwarding

If you would like to direct requests for a certain port to an internal machine (sometimes called opening a port, port mapping), you can do it like this:

/ip firewall nat add chain=dstnat dst-port=1234 action=dst-nat protocol=tcp to-address=192.168.1.1 to-port=1234

This rule translates to: when an incoming connection requests TCP port 1234, use the DST-NAT action and redirect it to local address 192.168.1.1 and the port 1234 Continue reading Mikrotik port mapping/forwarding

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