How does VLAN work in ESXi 6.7.?

Question

VMware

There is a network with one switch. Three portgroups and three vlans. Why can one host located with vmk in the same vlan ping another host in another vlan, although the same host cannot ping the first one

Answer 1

The question is not clear.
Most often, if something does not respond, the firewall works on the guest OS, check.
in addition, do not forget that vmk can work with several network adapters.