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Multicast mDNS

Hello is it possible to route 224.0.0.251 that multicast to another interface

at the moment we are using this for apple mobile printing. so the mobile print server is on Port4  and the WLAN iPhones on Port6 (WLAN)

other information:

PrintServer 192.168.12.8 (LAN Port4)

WLAN Device: 192.168.13.78 (WLAN Port6, PoE Switch connected the Sophos AP55C)

I try to establish the communication between the wlan devices and the print server for air print.

  

 

any ideas?

 

cheers



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Parents
  • I’ve spent the past few days researching and testing things out and it doesn’t appear Multicast Forwarding will work with forwarding mDNS from one subnet to another. The mDNS IP 224.0.0.50 is a part of the reserved 224.0.0.0/24 Local Network Control Block which cannot be routed. I don’t think Sophos XG has this capability and you would have to setup a separate device that sits on both subnets running an mDNS reflector. Some of the other firewalls like pfSense or OPNsense have an Avahi plug-in that will act as a mDNS reflector.

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    Sophos XG guides for home users: https://shred086.wordpress.com/

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  • I’ve spent the past few days researching and testing things out and it doesn’t appear Multicast Forwarding will work with forwarding mDNS from one subnet to another. The mDNS IP 224.0.0.50 is a part of the reserved 224.0.0.0/24 Local Network Control Block which cannot be routed. I don’t think Sophos XG has this capability and you would have to setup a separate device that sits on both subnets running an mDNS reflector. Some of the other firewalls like pfSense or OPNsense have an Avahi plug-in that will act as a mDNS reflector.

    ---

    Sophos XG guides for home users: https://shred086.wordpress.com/

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