[mythtv-users] Firewall problem with UPnP in f21/0.27-fixes

[John Pilkington]

Hi:  After I had problems trying to build myth in SL7.1beta on a 'new' 
box I'm now running Fedora 21, KDE spin, on it instead, and currently 
have myth 0.27.4-27-g40506c2 from rpmfusion installed.   I've had a few 
lockups, which I suspect are video-driver related, but the firewall 
management tool seems very flaky; UPnP works after 'systemctl stop 
firewalld', but with firewalld active I haven't been able to setup the 
UDP port 1900.  Selecting udp just makes the whole box sulk for tens of 
seconds; then it offers tcp again.

The similar-looking tool in SL7.0 has no such problem.  I'm using the 
'home' zone.  Both boxes are cable-connected to the same hub.  I'm 
trying to use the 'Troubleshooting' section from here:

https://www.mythtv.org/wiki/UPnP

I don't know if this is relevant, but both boxes show:

$ ifconfig
enp0s25: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
...

and on the SL7 box, but not the f21, I see:

$ ip maddr show
...
inet  239.255.255.250 users 2
...

Perhaps I should raise this on the Fedora list, but there might be more 
relevant experience here.  Suggestions welcomed.

TIA

John P