Umdns vs avahi

I installed package umdns thinking it would solve my cross-vlan-mdns-issue....
I got mdns reply from the router itself saying it has virtualhere usb, webcam and so on. But nothing from the other VLANs. Is umdns not a mdns proxy / reflector. Is it just for reponding from the openwrt?

Should I use AVAHI instead?

Min you, the firewall rules were opened for umdns to allow forward and reply, still nothing.