After a long long time… i have finished the vlan project. May it be helpful for others…
Network
Router
[admin@rb5009] > export hide-sensitive
# jan/03/2022 14:19:17 by RouterOS 7.1.1
# software id = 56R5-PRTF
#
# model = RB5009UG+S+
# serial number = EC190E3732EA
/interface bridge
add name=bridge1 protocol-mode=none vlan-filtering=yes
/interface ethernet
set [ find default-name=ether1 ] comment=crs309
set [ find default-name=ether2 ] comment=FritzBox
set [ find default-name=ether3 ] comment=Unifi
set [ find default-name=ether4 ] comment=FireTV
set [ find default-name=ether5 ] disabled=yes
set [ find default-name=ether6 ] disabled=yes
set [ find default-name=ether7 ] disabled=yes
set [ find default-name=ether8 ] comment=Notfall-Port
set [ find default-name=sfp-sfpplus1 ] disabled=yes
/interface vlan
add interface=bridge1 name=vlan2 vlan-id=2
add interface=bridge1 name=vlan10 vlan-id=10
add interface=bridge1 name=vlan20 vlan-id=20
/interface list
add name=LAN
add name=WAN
add name=VPN
add name=VLAN
add name=winbox-access
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip pool
add name=pool_subnet2 ranges=192.168.2.35-192.168.2.200
add name=pool_subnet10 ranges=192.168.10.35-192.168.10.200
add name=pool_subnet20 ranges=192.168.20.35-192.168.20.200
/ip dhcp-server
add add-arp=yes address-pool=pool_subnet2 interface=vlan2 lease-script=":local DHCPtag\r\
\n:set DHCPtag \"#DHCP\"\r\
\n\r\
\n:if ( [ :len \$leaseActIP ] <= 0 ) do={ :error \"empty lease address\" }\r\
\n\r\
\n:if ( \$leaseBound = 1 ) do=\\\r\
\n{\r\
\n :local ttl\r\
\n :local domain\r\
\n :local hostname\r\
\n :local fqdn\r\
\n :local leaseId\r\
\n :local comment\r\
\n\r\
\n /ip dhcp-server\r\
\n :set ttl [ get [ find name=\$leaseServerName ] lease-time ]\r\
\n network\r\
\n :set domain [ get [ find \$leaseActIP in address ] domain ]\r\
\n\r\
\n .. lease\r\
\n :set leaseId [ find address=\$leaseActIP ]\r\
\n\r\
\n # Check for multiple active leases for the same IP address. It's weird and it shouldn't be, but just in case.\r\
\n\r\
\n :if ( [ :len \$leaseId ] != 1) do={\r\
\n :log info \"DHCP2DNS: not registering domain name for address \$leaseActIP because of multiple active leases for \$leaseActIP\"\r\
\n :error \"multiple active leases for \$leaseActIP\"\r\
\n }\r\
\n\r\
\n :set hostname [ get \$leaseId host-name ]\r\
\n :set comment [ get \$leaseId comment ]\r\
\n /\r\
\n\r\
\n :if ( [ :len \$hostname ] <= 0 ) do={ :set hostname \$comment }\r\
\n\r\
\n :if ( [ :len \$hostname ] <= 0 ) do={\r\
\n :log error \"DHCP2DNS: not registering domain name for address \$leaseActIP because of empty lease host-name or comment\"\r\
\n :error \"empty lease host-name or comment\"\r\
\n }\r\
\n :if ( [ :len \$domain ] <= 0 ) do={\r\
\n :log error \"DHCP2DNS: not registering domain name for address \$leaseActIP because of empty network domain name\"\r\
\n :error \"empty network domain name\"\r\
\n }\r\
\n\r\
\n :set fqdn \"\$hostname.\$domain\"\r\
\n\r\
\n /ip dns static\r\
\n :if ( [ :len [ find name=\$fqdn and address=\$leaseActIP and disabled=no ] ] = 0 ) do={\r\
\n add address=\$leaseActIP name=\$fqdn ttl=\$ttl comment=\$DHCPtag disabled=no\r\
\n } else={\r\
\n :log error \"DHCP2DNS: not registering domain name \$fqdn for address \$leaseActIP because of existing active static DNS entry with this name or address\"\r\
\n }\r\
\n /\r\
\n} else={\r\
\n /ip dns static\r\
\n :local dnsDhcpId\r\
\n :set dnsDhcpId [ find address=\$leaseActIP and comment=\$DHCPtag ]\r\
\n :if ( [ :len \$dnsDhcpId ] > 0 ) do={\r\
\n remove \$dnsDhcpId\r\
\n }\r\
\n /\r\
\n}\r\
\n" lease-time=4h name=dhcp_server_subnet2_vlan2
add add-arp=yes address-pool=pool_subnet10 interface=vlan10 lease-time=4h name=dhcp_server_subnet10_vlan10
add add-arp=yes address-pool=pool_subnet20 interface=vlan20 lease-time=4h name=dhcp_server_subnet20_vlan20
/port
set 0 baud-rate=115200 data-bits=8 flow-control=none name=usb1 parity=none stop-bits=1
/interface bridge port
add bridge=bridge1 frame-types=admit-only-vlan-tagged interface=ether1
add bridge=bridge1 ingress-filtering=no interface=ether3
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged interface=ether4 pvid=2
/ip neighbor discovery-settings
set discover-interface-list=!WAN
/ip settings
set max-neighbor-entries=8192 tcp-syncookies=yes
/ipv6 settings
set max-neighbor-entries=8192
/interface bridge vlan
add bridge=bridge1 tagged=ether3,bridge1,ether1 untagged=ether4 vlan-ids=2
add bridge=bridge1 tagged=ether3,bridge1,ether1 vlan-ids=10
add bridge=bridge1 tagged=ether3,bridge1,ether1 vlan-ids=20
/interface list member
add interface=ether1 list=LAN
add interface=ether2 list=WAN
add interface=ether3 list=LAN
add interface=ether4 list=LAN
add interface=ether5 list=LAN
add interface=ether6 list=LAN
add interface=ether7 list=LAN
add interface=ether8 list=LAN
add interface=wireguard_clients list=LAN
add interface=wireguard_clients list=VPN
add interface=wireguard_s2s_ag list=VPN
add interface=vlan10 list=VLAN
add interface=vlan2 list=VLAN
add interface=vlan20 list=VLAN
add interface=ether1 list=winbox-access
add interface=ether3 list=winbox-access
add interface=vlan2 list=winbox-access
/ip address
add address=192.168.2.1/24 interface=vlan2 network=192.168.2.0
add address=192.168.66.1/24 interface=wireguard_clients network=192.168.66.0
add address=10.0.0.6 interface=wireguard_s2s_ag network=10.0.0.6
add address=192.168.10.1/24 interface=vlan10 network=192.168.10.0
add address=192.168.20.1/24 interface=vlan20 network=192.168.20.0
/ip cloud
set ddns-enabled=yes ddns-update-interval=10m update-time=no
/ip dhcp-server network
add address=192.168.2.0/24 dns-server=192.168.2.1 domain=grote.lan gateway=192.168.2.1 ntp-server=192.168.2.43
add address=192.168.10.0/24 dns-server=9.9.9.9 gateway=192.168.10.1
add address=192.168.20.0/24 dns-server=9.9.9.9 gateway=192.168.20.1
/ip dns
set allow-remote-requests=yes cache-max-ttl=1h cache-size=4096KiB max-concurrent-queries=1000 servers=192.168.2.3
/ip firewall address-list
add address=192.168.2.0/24 list=subnet2
add address=192.168.66.0/24 list=subnet66
add address=192.168.2.0/24 list=mgmt_access
add address=192.168.66.0/24 list=mgmt_access
add address=192.168.3.0/24 list=subnet3
add address=0.0.0.0/8 comment=RFC6890 list=not_in_internet
add address=172.16.0.0/12 comment=RFC6890 list=not_in_internet
add address=192.168.0.0/16 comment=RFC6890 list=not_in_internet
add address=10.0.0.0/8 comment=RFC6890 list=not_in_internet
add address=169.254.0.0/16 comment=RFC6890 list=not_in_internet
add address=127.0.0.0/8 comment=RFC6890 list=not_in_internet
add address=224.0.0.0/4 comment=Multicast list=not_in_internet
add address=198.18.0.0/15 comment=RFC6890 list=not_in_internet
add address=192.0.0.0/24 comment=RFC6890 list=not_in_internet
add address=192.0.2.0/24 comment=RFC6890 list=not_in_internet
add address=198.51.100.0/24 comment=RFC6890 list=not_in_internet
add address=203.0.113.0/24 comment=RFC6890 list=not_in_internet
add address=100.64.0.0/10 comment=RFC6890 list=not_in_internet
add address=240.0.0.0/4 comment=RFC6890 list=not_in_internet
add address=192.88.99.0/24 comment="6to4 relay Anycast [RFC 3068]" list=not_in_internet
add list=DOH-Server
add address=1.0.0.1 list=DOH-Server
[...]
add address=96.113.151.149 list=DOH-Server
add address=96.113.151.150 list=DOH-Server
add address=9.9.9.10 list=DOH-Server
add address=9.9.9.11 list=DOH-Server
add address=9.9.9.12 list=DOH-Server
add address=9.9.9.13 list=DOH-Server
add address=9.9.9.9 list=DOH-Server
add address=192.168.10.0/24 comment=VLAN10 list=subnet10
add address=192.168.2.40 list=subnet3_access
add address=192.168.2.65 list=subnet3_access
add address=192.168.2.180 list=subnet3_access
add address=192.168.20.0/24 comment=VLAN20 list=subnet20
/ip firewall filter
add action=accept chain=input connection-state=established,related
add action=accept chain=input comment=Wireguard dst-port=13231 in-interface-list=WAN protocol=udp
add action=accept chain=input comment="SSH, winbox" dst-port=22,8291 in-interface-list=!WAN protocol=tcp
add action=accept chain=input comment=DNS dst-port=53 in-interface-list=!WAN protocol=udp
add action=accept chain=input comment=DNS dst-port=53 in-interface-list=!WAN protocol=tcp
add action=drop chain=input
add action=accept chain=forward comment="Established, Related" connection-state=established,related
add action=jump chain=forward comment=DDoS connection-state=new in-interface-list=WAN jump-target=detect-ddos
add action=drop chain=forward comment="Drop Traffic between VLANs" in-interface-list=VLAN log=yes log-prefix="Drop VLAN-->VLAN" out-interface-list=VLAN
add action=drop chain=forward comment="Drop incoming from internet which is not public IP" in-interface-list=WAN src-address-list=not_in_internet
add action=drop chain=forward comment="Drop Zugriff subnet3 ausser von irantu und win3" dst-address-list=subnet3 log=yes log-prefix="Drop Access SN3" out-interface=wireguard_s2s_ag src-address-list=!subnet3_access
add action=drop chain=forward comment="Drop DNS-over-HTTPS" dst-address-list=DOH-Server log-prefix="Drop DoH: " port=443 protocol=tcp
add action=drop chain=forward comment="Drop DNS-over-HTTPS" dst-address-list=DOH-Server log-prefix="Drop DoH: " port=443 protocol=udp
add action=drop chain=forward comment="Drop Invalid" connection-state=invalid
add action=drop chain=forward comment="Drop incoming packets that are not NAT`ted" connection-nat-state=!dstnat connection-state=new in-interface-list=WAN
add action=return chain=detect-ddos comment=DDoS dst-limit=32,32,src-and-dst-addresses/10s
add action=add-src-to-address-list address-list=ddos-attackers address-list-timeout=10m chain=detect-ddos comment=DDoS log=yes log-prefix="Detect DDoS: "
/ip firewall nat
add action=masquerade chain=srcnat comment=srcnat-masquerade out-interface-list=WAN
add action=masquerade chain=srcnat comment="srcnat-masquerade, damit immer die Router IP beim mango02 sichtbar ist, und nicht die einzelnen Clients aus meinem Netz" out-interface=wireguard_s2s_ag
add action=dst-nat chain=dstnat comment="Portweiterleitung Traefik" in-interface-list=WAN log-prefix="portweiterleitung_traefik: " port=443,80 protocol=tcp to-addresses=192.168.2.68 to-ports=443
add action=dst-nat chain=dstnat comment="Portweiterleitung gitea_ssh" in-interface-list=WAN log-prefix="portweiterleitung_gitea_ssh: " port=2222 protocol=tcp to-addresses=192.168.2.44 to-ports=2222
add action=masquerade chain=srcnat comment=Hairpin-NAT dst-address-list=wan_ip1 dst-port=443,80 log=yes log-prefix="Hairpin-NAT: " out-interface-list=LAN protocol=tcp src-address-list=subnet2
add action=dst-nat chain=dstnat comment=DNS-Redirect: dst-address=!192.168.2.1 dst-port=53 in-interface-list=!WAN log-prefix="DNS-Redirect:: " protocol=udp src-address=!192.168.2.3 src-address-list=subnet2 to-addresses=192.168.2.1 to-ports=53
add action=dst-nat chain=dstnat comment=DNS-Redirect: dst-address=!192.168.2.1 dst-port=53 in-interface-list=!WAN log-prefix="DNS-Redirect:: " protocol=tcp src-address=!192.168.2.3 src-address-list=subnet2 to-addresses=192.168.2.1 to-ports=53
/ip firewall raw
add action=drop chain=prerouting comment=DDoS log-prefix="Drop DDoS: " src-address-list=ddos-attackers
/ip route
add comment="route fuer fritzbox-mgmt" distance=1 dst-address=192.168.5.1/32 gateway=ether2
add disabled=no distance=1 dst-address=192.168.3.0/24 gateway=wireguard_s2s_ag pref-src="" routing-table=main scope=30 suppress-hw-offload=no target-scope=10
Switch1
[admin@crs309] > export hide-sensitive
# jan/03/2022 14:18:34 by RouterOS 6.49.2
# software id = 5F4H-LU84
#
# model = CRS309-1G-8S+
# serial number = D8480D98FA47
/interface ethernet
set [ find default-name=ether1 ] comment=Notfall-Port l2mtu=1592
set [ find default-name=sfp-sfpplus1 ] comment=rb5009 l2mtu=1592
set [ find default-name=sfp-sfpplus2 ] disabled=yes l2mtu=1592
set [ find default-name=sfp-sfpplus3 ] comment=pve2-sfp l2mtu=1592
set [ find default-name=sfp-sfpplus4 ] advertise=1000M-half,1000M-full auto-negotiation=no comment=pve2-ipmi l2mtu=1592
set [ find default-name=sfp-sfpplus5 ] auto-negotiation=no comment=hex l2mtu=1592
set [ find default-name=sfp-sfpplus6 ] disabled=yes l2mtu=1592
set [ find default-name=sfp-sfpplus7 ] disabled=yes l2mtu=1592
set [ find default-name=sfp-sfpplus8 ] disabled=yes l2mtu=1592
/interface bridge
add dhcp-snooping=yes ingress-filtering=yes name=bridge1 vlan-filtering=yes
/interface vlan
add interface=bridge1 name=vlan2 vlan-id=2
/interface list
add name=LAN
add name=VLAN
add name=winbox-access
/system logging action
set 3 target=memory
/user group
set full policy=local,telnet,ssh,ftp,reboot,read,write,policy,test,winbox,password,web,sniff,sensitive,api,romon,dude,tikapp
/interface bridge port
add bridge=bridge1 comment="\"trusted\" fur dhcp-snooping" frame-types=admit-only-vlan-tagged ingress-filtering=yes interface=sfp-sfpplus1 trusted=yes
add bridge=bridge1 interface=sfp-sfpplus2
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged ingress-filtering=yes interface=sfp-sfpplus3 pvid=2
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged ingress-filtering=yes interface=sfp-sfpplus4 pvid=2
add bridge=bridge1 frame-types=admit-only-vlan-tagged ingress-filtering=yes interface=sfp-sfpplus5
add bridge=bridge1 interface=sfp-sfpplus6
add bridge=bridge1 interface=sfp-sfpplus7
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface bridge vlan
add bridge=bridge1 tagged=sfp-sfpplus1,bridge1,sfp-sfpplus5 untagged=sfp-sfpplus3,sfp-sfpplus4 vlan-ids=2
add bridge=bridge1 tagged=sfp-sfpplus1,bridge1,sfp-sfpplus5 vlan-ids=10
add bridge=bridge1 tagged=sfp-sfpplus5,bridge1,sfp-sfpplus1 vlan-ids=20
/interface list member
add interface=ether1 list=LAN
add interface=sfp-sfpplus1 list=LAN
add interface=sfp-sfpplus2 list=LAN
add interface=sfp-sfpplus3 list=LAN
add interface=sfp-sfpplus4 list=LAN
add interface=sfp-sfpplus5 list=LAN
add interface=sfp-sfpplus6 list=LAN
add interface=sfp-sfpplus7 list=LAN
add interface=sfp-sfpplus8 list=LAN
add interface=vlan2 list=VLAN
add interface=sfp-sfpplus1 list=winbox-access
add interface=sfp-sfpplus3 list=winbox-access
add interface=sfp-sfpplus5 list=winbox-access
add interface=sfp-sfpplus8 list=winbox-access
/ip address
add address=192.168.2.224/24 interface=vlan2 network=192.168.2.0
/ip cloud
set update-time=no
/ip dns
set servers=192.168.2.1
/ip firewall address-list
add address=192.168.2.0/24 list=subnet2
add address=192.168.66.0/24 list=mgmt_access
add address=192.168.2.0/24 list=mgmt_access
add address=192.168.66.0/24 list=subnet66
add address=192.168.3.0/24 list=subnet3
add address=192.168.10.0/24 comment=VLAN10 list=subnet10
add address=192.168.20.0/24 comment=VLAN20 list=subnet20
/ip firewall filter
add action=accept chain=input connection-state=established,related
add action=accept chain=input dst-port=22,8291 protocol=tcp src-address-list=mgmt_access
add action=drop chain=input
Switch2
[admin@hex] > exp hide-sensitive
# jan/03/2022 14:16:30 by RouterOS 6.49.2
# software id = NPZE-DVQU
#
# model = RB750Gr3
# serial number = CC210C7265A3
/interface ethernet
set [ find default-name=ether1 ] comment=Notfall-Port
set [ find default-name=ether2 ] comment=CRS309
set [ find default-name=ether3 ] comment=Laptop
set [ find default-name=ether4 ] comment=Dataport
set [ find default-name=ether5 ] comment=Scanner
/interface bridge
add dhcp-snooping=yes ingress-filtering=yes name=bridge1 vlan-filtering=yes
/interface vlan
add interface=bridge1 name=vlan2 vlan-id=2
/interface list
add name=VLAN
add name=LAN
add name=winbox-access
/port
set 0 name=usb1
/interface bridge port
add bridge=bridge1 comment="trusted f\FCr dhcp-snooping" frame-types=admit-only-vlan-tagged ingress-filtering=yes interface=ether2 trusted=yes
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged ingress-filtering=yes interface=ether3 pvid=2
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged ingress-filtering=yes interface=ether4 pvid=10
add bridge=bridge1 frame-types=admit-only-untagged-and-priority-tagged ingress-filtering=yes interface=ether5 pvid=2
/interface bridge vlan
add bridge=bridge1 tagged=bridge1,ether2 untagged=ether3,ether5 vlan-ids=2
add bridge=bridge1 tagged=bridge1,ether2 untagged=ether4 vlan-ids=10
add bridge=bridge1 tagged=bridge1,ether2 vlan-ids=20
/interface list member
add interface=ether2 list=LAN
add interface=ether3 list=LAN
add interface=ether4 list=LAN
add interface=ether5 list=LAN
add interface=vlan2 list=VLAN
add interface=ether1 list=LAN
add interface=ether2 list=winbox-access
add interface=ether3 list=winbox-access
add interface=vlan2 list=winbox-access
/ip address
add address=192.168.2.225/24 interface=vlan2 network=192.168.2.0
/ip cloud
set update-time=no
/ip dhcp-client
add interface=ether5
/ip dns
set servers=192.168.2.1
/ip firewall address-list
add address=192.168.2.0/24 list=subnet2
add address=192.168.66.0/24 list=mgmt_access
add address=192.168.2.0/24 list=mgmt_access
add address=192.168.66.0/24 list=subnet66
add address=192.168.3.0/24 list=subnet3
add address=192.168.10.0/24 comment=VLAN10 list=subnet10
add address=192.168.20.0/24 comment=VLAN20 list=subnet20
/ip firewall filter
add action=accept chain=input connection-state=established,related
add action=accept chain=input dst-port=22,8291 protocol=tcp src-address-list=mgmt_access
add action=drop chain=input
(very few use the default ports from my understanding as well)