H, I have a setup where I have several networks depending on their security. I would like to broadcast mDNS from the less secure networks to more secure ones to make things like Google Cast works but I'm not sure how to do it. Ideally it would be one way. (I guess it should be possible with umdns …

Avahi would be the right tool to help you in this case. For your Avahi config, you will want a config like this: /etc/avahi/avahi-daemon.conf: [server] use-ipv4=yes use-ipv6=yes check-response-ttl=no use-iff-running=no [publish] publish-addresses=yes publish-hinfo=yes publish-workstation=no publi…

This is so that the guests can use the Chromecast in LAN?

Correct, but more explicitly, the firewall rules I listed make it so the firewall will not drop the multicast packets that devices send out on port 5353 for mDNS announcement of their services. Because those packets are not dropped, the avahi service will see them on the interfaces it is listening …

Yes, it makes sense, but I don't know if it suits what I need. In my case I have two VLANs, the LAN one and the GUEST one. They have no access to each other. Guests would only have to have access to the LAN connected Chromecast and those on LAN would obviously have to have access as well. Those on L…

This solution can ultimately still fit that use-case. You just would modify the option src in the rules I listed above to be your LAN interface and still set up avahi. Then, whatever ports Chromecast actually requires for remote casting (8008-8009/TCP and 32768-61000/UDP ??) need to be opened (read…

Ok, first I need to know which package to install because searching for avahi shows 18 results.

Yup! :slight_smile: Here's what I have: root@OpenWrt:~/sqm-autorate# opkg list-installed | grep avahi avahi-dbus-daemon - 0.8-7 libavahi-dbus-support - 0.8-7

I have already installed and edited the config file: root@enrutador:~# cat /etc/avahi/avahi-daemon.conf [server] #host-name=foo #domain-name=local use-ipv4=yes use-ipv6=yes check-response-ttl=no use-iff-running=no [publish] publish-addresses=yes publish-hinfo=yes publish-workstation=no publish-…

[image] castillofrancodamian: I still can't connect to the Chromecast from the guest device. But you are able to see it is being "advertised" via mDNS now, yes?

I have changed the option src 'lan' rule to option src 'guests' and now the Chromecast appears in the device's Youtube app, but I can't connect.

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