After posting this and thinking that I understand at least something about switch ACLs I'm stuck at this scenario: I have VLAN 20 and VLAN 60 and they must be mutually completely isolated with two...

@Clive_A , thank you for your answers and comments. Regarding your question at point 5: I am using the switch as the VLAN interface. Right now, I study the switch (VLANs and ACLs) without connectiong...

I have SG3428X-M2 L2+ switch with V1.20 firmware. I managed to create VLANs, specific DHCP IP ranges for VLANs and I think I understand this. Then I start digging into switch ACL with purpose to...

@SteelyDunes , thank you for the answer. Yes, defining the interface was my missing part. Now I get IP addresses as expected. Now I fight the ACL rules for restricting inter VLAN communication, but I...

@Clive_A , thank you for the answer and the hint. I do have OPNSense router/firewall in the configuration (instead of ER605) and it provides me Internet. And I want to use switch as a DHCP server...

KJK wrote @SasoC If the DHCP server is configured on the switch and running, you probably just need to configure the access ports correctly. Have each access port untagged in a single VLAN and its...