@Arion Yes, that's what I would expect. On the ER605 router? Via another channel, tp-link indicated that this functionality has been intentionally disabled to save processing power on the cheaper...

@Fae Are you able to confirm whether or not unidirectional talk across VLAN should be possible? Thank you.

@John1234 Thank you for your response. That's too bad. We regularly use this functionality on Watchguard Firebox and Netgate pfSense. Since when creating a rule you are asked to specify a source and...

The page below describes how you can block vlan to vlan traffic using an ACL: https://www.tp-link.com/nl/support/faq/3061/ "After saving, the ACL takes effect and the computers in the R&D department...