I’m quite new to using Mikrotik kit and wondered if one of you guys would be able to point me in the right direction on something. I working on a system that’s been set up for a network that goes out on events, most of the time each event is pretty much the same setup so everything is plug and play. On this event I have two separate WAN lines coming in, a feed from a LTE modem and one from a satellite modem. Everything is set so usually the WAN comes in on ‘eth1’ and then LAN out of ‘eth2’ into our switch and on and on.
On this event I’d like to have the vast majority of the network on the sat feed and then either certain hosts (only 3 or 4) or a vlan on the LTE feed so these can benefit from the faster latency. So I’m guessing I just need to route eth3 to one VLAN?
In principle it could be done in the following manner: plug sat modem to ether1, plug LAN to ether2 and plug LTE box to ether3. If you’re running VLAN via your LAN switches, then create vlan interface on ether2 and vith appropriate vlan id. Make sure none of used ether ports are in same bridge. Better yet remove all used ether devices ftom any bridge and configure them directly.
Now your RB needs 4 IP addresses: one on each of ether devices and one on vlan device. Addresses on WAN devices will probably get assigned by DHCP. And there should be 2 default routes, one via sat (ether1) and other via LTE (ether3), probably set by DHCP as well. As it is now, RB will route everything everywhere. To separate things as you want, you need to configure firewall filter rules as follows: