Eric, the MICROTIK router is a dhcp server. Each port on the router has its own vlan and interface, each bridge has a bridge, each bridge has dhcp servers with their pools. On the extreme, the same vlans are created. I am pinging the gateway on a microtic (10.1.20.1 or 10.1.30.1) from the commutator, but the devices that received the address (the phone and the computer do not respond).