Hi everybody, I want to achieve a VLAN translation with RB951. Here is the actual scenario: Same subnet for every computer and network device (192.168.0.0/22). One router connected to internet, provided by the ISP which doesn´t allow trunk ports on it´s LAN ports, and can´t translate any type of V…

I would think untag the VLAN’s on wan port should be the way to go

I wasn’t sure, as the description suggests that addresses from the same IP subnet are randomly scattered among the VLANs. So it’s fine to untag any packet coming from any of the VLANs from the client to the WAN side, but the problem arises when you need to tag the packet in the opposite direction as…

I would think untag the VLAN’s on wan port should be the way to go Thanks CZFan for your answer. I thought so the same, but couldn´t find the way to do it properly, plus there is the handicap on the opposite direction as sindy stated. Thanks sindy for your detailed answer, I appreciate…

Well, if you can make the 'Tik a DHCP server for those VLANs, there is no need to keep 192.168.0.0/22 for all of them and you can slice that range (or use other subnets outside that range) into one subnet per VLAN so the whole task becomes much simpler, it then involves just plain L3 routing with a …

Well, if you can make the 'Tik a DHCP server for those VLANs, there is no need to keep 192.168.0.0/22 for all of them and you can slice that range (or use other subnets outside that range) into one subnet per VLAN so the whole task becomes much simpler, it then involves just plain L3 routing with …

Are the VLANs on the existing switches using unique addressing already? Are you able to add a static route or static routes to the ISP device? I’m sure you’ve asked this but the ISP device cannot be put into a “bridge” like mode where the public addressing is presented directly to the new MikroTik (…

Are the VLANs on the existing switches using unique addressing already? First of all, thanks for participating in this topic. I appreciate all the question, will try to answer in the best way. :smiley: Those switches aren´t config yet till I fix this problem with the ISP router, but yes the …

I wasn’t sure, as the description suggests that addresses from the same IP subnet are randomly scattered among the VLANs. So it’s fine to untag any packet coming from any of the VLANs from the client to the WAN side, but the problem arises when you need to tag the packet in the opposite direction …

I´m back after more and more tests. Finally ISP is convinced, and provided a router which is allowed to be in “bridge mode”. I put in bridge mode, and configured mikrotik to connect through PPPoE. Till here, everything is correct. NAT rule (the one that is created automatically) is working good tra…

On mikrotik: (don´t know how to export the configuration to paste it here, like “show running-config” in Cisco) In Winbox or WebFig, press the [Terminal] button to open a command line window. Then follow the instructions in my automatic signature.

Trunk port and VLAN translation

RouterOS General

CZFan July 25, 2018, 4:55pm 16

I am starting to wonder if there is not maybe a bug creeping in here, see extract of config in this post Dealing with VLANs on cisco switch. - #4 by CZFan

In this one, interfaces are showing, bit not the Vlan-id’s?