I want to give you a little bit more info. I am a beginner with VLAN and want to use separate networks for WLAN and LAN for security reasons, so I need 2 VLANs, Changing all current networks is very dangerous, so I want to do some tests before to understand better what I am doing.
Mikrotik RouterBOARD 4011iGS+RM (AL21400) - https://mikrotik.com/product/rb4011igs_rm will be used as Firewall
Mikrotik Switch CRS326-24G-2S+IN (98DX3236) - https://mikrotik.com/product/crs326_24g_2s_in will be used as Switch
https://forum.mikrotik.com/viewtopic.php?t=149786
*) certificate - removed DSA (D) flag;
I don't understand what removed in this case means.
So my first step is to get 2 networks from the openWRT Router / C7 to the switch. Probably this has to be done with 2 tagged VLANs. I am open to any ideas. See Playground for VLAN