How can Bonjour service be broadcast between subnets?

We are trying to run AirServer to view our device's screens on the PC. But the devices do not detect the AirServer running on the PC. We tracked the issue down to the fact that the PC is on the main LAN, and devices on the WiFi network. When we put another PC onto wifi, it works.
What can we do to broadcast bonjour between the 2 subnets? Any DNS records that the domain needs? Both LAN and wifi are managed by our SonicWall router.
Thanks.
cdesk458Asked:
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serialbandCommented:
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/NetServices/Articles/faq.html

3. Yes. The first release of DNS Service Discovery (DNS-SD) for OS X concentrated on Multicast DNS (mDNS) for single-link networks because this was the environment worst served by IP software. Bonjour uses Dynamic DNS Update (RFC 2316) and unicast DNS queries to enable wide-area service discovery.
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Craig BeckCommented:
This might help you get it working, depending on your current deployment...

https://support.software.dell.com/kb/sw10132

Alternatively, if that's not relevant to you, you can do it manually by creating DNS records, but it's easier to install a Bonjour Gateway.  There are plenty of free ones.

Aerohive have a Bonjour Gateway in the form of a VM OVA that you can deploy quickly.
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cdesk458Author Commented:
Thanks craig, I will look into a bonjour gateway that I can use. The Sonicwall that we have (PRO 4100) doesn't seem to support mDNS protocol routing, as there are no equivalent settings that I could find.
I was also looking to modify my DNS settings on my domain, as that seems to be the fastest solution.
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Craig BeckCommented:
Maybe the firmware on the Sonicwall just doesn't support it, or needs upgrading?

Updating DNS will be ok as long as devices don't change their IP addresses.  If they do you'll have to manually update records each time a service-hosting device connects to the network.
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