Hi,
I manage an existing network of Cisco 3750G switches, that have several VLAN’s configured from a core switch in a tree topology to provide various departments with their own local VLAN, separate from other departments. I now need to connect a Mikrotik hEX router (the model with the SFP port). It needs to be a bridge not a router, with the SFP port connected back to one of the aforementioned 3750G switches, the link between the 3750G and the Mikrotik is a Cisco “trunk” port carrying several VLAN’s.
I need to setup the Mikrotik such that I have one of it’s LAN ports on one VLAN (say VLAN 100) and another LAN port on a different VLAN (say VLAN 200), these LAN ports need to send/receive untagged packets to/from locally connected devices. I.e. the Mikrotik needs to tag incoming packets from locally connected devices with the VLAN associated with the port and send it via the SFP port to the Cisco, and untag packets from the Cisco egressing to the locally connected devices.
To complicate matters the existing network uses VLAN 99 as the management VLAN and I will therefore need to setup the Mikrotik with an IP address on VLAN 99 so that I can remotely manage it. The Mikrotik is using the latest RouterOS.
I found several HOWTO’s by searching on Google, but there is a lot of talk about recent RouterOS’s doing it differently, i.e. using a bridge and not using “master-port” which has confused me. There are also a lot of examples of how to do it the other way around, i.e. with the Mikrotik as the WAN router feeding multiple VLANs out to a Cisco switch, but I am struggling to find any useful examples doing it the way I need it !
Any help / pointers / example configs would be very much appreciated.
Thanks,
Chris