Hello, I am excited to post here for the first time! I have a simple question, though not sure about the answer. I want to pass some vlans on a single ethernet port (let’s say ether 2) of my hex router which will be connected to a cisco switch’s trunk port, in any of the following 2 ways:
1: Pass the vlans’ interfaces simply over the “ether2” directly.
2: Create a bridge, add “ether2” in the bridge , pass the vlans’ interfaces on the bridge and enable bridge vlan filtering. (of course adding the appropriate tagging entries in bridge vlan section as well).
My question is, which one between the two above ways is better and why? Or maybe it will have no difference since there is only one port in the bridge? I am not sure about the speed, overall rstp compatibility etc.
Thank you very much for anyone’s reply!
I would recommend using the bridge
assign vlans to the bridge
ether 2 to the bridge port settings
the vlans should have their own dhcp and network etc,
You can add one vlan interface on top of physical interface, and configure dhcp server on this vlan interface.
Then you can add another vlan interface on top of same physical interface, and configure dhcp server on this new vlan interface.
Same works with third, fourth, fifth, … there’s probably some limit, but I never tried to find it.
I would argue you should go for the third option, the way MikroTik wants you to do it nowadays anyway.
Create a bridge, define all your vlans in the bridge vlan menu and add all relevant ethernet interfaces to the bridge, defining whether its an access port or trunk port while at it. In addition to /interface bridge vlan configuration, all vlans that need L3 visibility (ip address /dhcp server etc) have to also be defined in /interface vlan, under the bridge to expose them to RouterOS. When done enable vlan filtering on the bridge for good measure. Done.