Mike Wohlgemuth wrote:
As a starting point, I am attempting to discover services via SSDP. If I have the firewall enabled, and I run upnp-inspector, I see no services. No matter what combination of settings I have tried, I never see any services via upnp-inspector. If I disable the firewall and immediately rediscover services in upnp-inspector, I will instantly see my printers, my media server, etc. I wouldn't at all be surprised if the services didn't work without extra ports open, but I cannot even see them to attempt to use them.
It looks like upnp-inspector not only listens[1] on UDP port 1900, but on two other randomized ports as well. One solution would be to have upnp-inspector use the new firewalld API in Fedora 15 to open up ports automatically. Another solution would be to allow high TCP/UDP ports (say, >30000).
[1] # netstat -anp | grep -i python