I have an RB750G. What I’m wanting to do is have two networks ran off of the same router. I work on other people’s computers outside of work (moonlighting) every now and again and I want to seperate them from my main network in case of viruses and other malware spreading to my main network. I have my main IP from my modem on the one interface and that is bridged to another LAN port on the RB750G. That’s working great and has for months. Is there a way to create another bridge from the modem port to say LAN2 port and then have it give out a different range of IPs? So I want my main network on LAN1 to give out IPs in the 192.168.1.x range and the LAN2 port to give out IPs on the 10.0.0.x range. Is this doable? If so, how?
Yes you can separate out each interface on a MikroTik and they will all act as their own separate routed interface.
With that being said, it depends on your LAN more than anything else. You do not ever want to have two different DHCP servers running at the same time on the same logical layer2 network, this will cause you a ton of problems if it happens. You will either need separate hardware for each of your two LANs, or have hardware that is capable of doing VLANs to create multiple logical layer2 networks using the same hardware. This usually means managed switches.
Set up a route for each network going to different ether interfaces. Then each gets a dhcp server.
And each gets masqueraded in the firewall so that NAT works. Fill in the Source address field for each with its address block.
Then be sure to set up firewall filter rules to reject the other network. You don’t want them to be able to reach each other on the LAN side.
Tom