Multicast Bonjour Apple TV Traffic?

RE: Multicast Bonjour Apple TV Traffic?

Prism — Sat, 08 Aug 2020 11:03:24 GMT

[quote user="LuCar Toni"]

Did this work for you, or did you simply rebuild the "how it should work" Prism

[/quote]

It's working for me with the Chromecast.

Also, I don't have a DNS Server at my network anymore, the XG is my DNS and DHCP.

And apparently it uses SSDP.

Thanks!

RE: Multicast Bonjour Apple TV Traffic?

LuCar Toni — Sat, 08 Aug 2020 07:44:41 GMT

Did this work for you, or did you simply rebuild the "how it should work" Prism

The multicast Routing could work, but you need Multicast DNS to get this working.

https://tools.ietf.org/html/rfc6762

RE: Multicast Bonjour Apple TV Traffic?

shred — Sat, 08 Aug 2020 03:38:48 GMT

I don’t think it’s possible with Sophos XG:

community.sophos.com/.../multicast-mdns

RE: Multicast Bonjour Apple TV Traffic?

yesandno — Fri, 07 Aug 2020 21:20:54 GMT

Hi,

I tried the static routing and no dice. Client on Network B still cannot screen mirror to the Apple TV on Network A. Remember Network A is using a separate DHCP server but the XG as the router and Network B is using DHCP and Router on XG side. I even created a firewall rule to allow LAN-LAN traffic with no luck.

Thanks.

RE: Multicast Bonjour Apple TV Traffic?

yesandno — Fri, 07 Aug 2020 18:55:37 GMT

Great explanation with screenshots too!

I will try it, and update you next week sometime.

Thank you.

RE: Multicast Bonjour Apple TV Traffic?

Prism — Fri, 07 Aug 2020 18:45:08 GMT

Hi,

[quote user="Cornerstone Academy"]How do I go about creating a route or bridge to the other network to allow bonjour/multicast traffic so clients on Network B can cast to an ATV without being directly next to it.[/quote]

You can do this with Multicast Routing on XG.

First enable Multicast Forwarding on XG, It's located at Routing => Static Routing, and on the bottom of the page.

Then you can create the necessary multicast route. Here's an example for the Apple TV (Apple Bonjour specifically).

On Source IPv4 address, It will be your Apple TV address - Also if you can, create a static mapping on XG DHCP for it.

The Source Interface is the interface that's located the device.

On Multicast IPv4 Address It will be "224.0.0.251", since that's the IPv4 that the Apple TV is currently using for it. (Also I'm not 100% sure that's the correct IPv4, but after searching - I believe It is.)

And on Destination Interface will be where the traffic will be routed.

Also in case someone is having the same issue but with chromecast, the only difference will be the Multicast IPv4. (chromecast uses "239.255.255.250"). (I've faced the same issue before.)

Thanks!