Hello,

I made the configuration instructions as on the website https://help.mikrotik.com/docs/display/ ... VLAN+Trunk but I decided to make a little modification, instead of vlan10 I changed to two vlans (vlan10, vlan20).

I want to achieve something like that to have a backup link either to r1 or to r2.

When I add vlan10 to bridge on r1, I would like dhclient on r2 to get the IP address from the r1 router. And of course vice versa

I would use OSPF.
Something like here viewtopic.php?t=149027

Your APs and your ST devices, must both be able to pass Tagged traffic on VLANs 10 and 20.

Your APs and your ST devices, must both be able to pass Tagged traffic on VLANs 10 and 20.

When I set static IP for both VLANs on both Routers I can ping them:
On R1 i set IP in eg. 10.10.15.1(vlan15 inteface) on R2 I set IP 10.10.15.15 (vlan15 interface).

But i don't quite know how to transmit internet (I thinking in NAT category )

Instead of guessing, it would be best if you posted the configuration of both routers with /export hide-sensitive.. also remove any serials, public IPs if any etc...
Also a network diagram of the exact topology would be nice...

Which Program is good to draw Network Topology? I prepare IT, and the exports ASAP.

As per.........
viewtopic.php?p=908118

NETWORK DIAGRAM APPS:
https://online.visual-paradigm.com/diag ... -software/
https://www.lucidchart.com/pages/
https://drawio-app.com/product/
https://www.diagrams.net/ (its older sibling soon to be discontinued https://drawio-app.com/product/)
( Other links for diagrams.net - https://www.youtube.com/watch?v=P3ieXjI7ZSk & https://www.youtube.com/watch?v=mpF1i9sfEJ0 )
https://sourceforge.net/projects/dia-installer/
https://www.yworks.com/products/yed (and icons for yed --> https://github.com/danger89/yEd_cisco_network_icons )
https://www.libreoffice.org/discover/draw/

http://kilievich.com/fpinger/ - has a simple drawing program but not its main intent.

Another idea would be to apply MSTP between Router A and Router B, disable any protocol-mode on the APs and STs between.
Then you could modify the internal path costs so that each VLAN could follow a different path and at the same time keeping redundancy enabled...