UPnP firewall problem with fc21

[John Pilkington]

I posted about this on the mythtv-users list and have a workaround, but 
it seems worth an airing here.

I have a new installation of fc21, KDE spin, 64-bit on a Core2Duo box. 
MythTV is from rpm fusion and UPnP requires UDP on port 1900.  I have 
been unable to set this up using the default systemd graphic firewall 
manager, which causes a tens-of-seconds system sulk and then offers tcp, 
but disabling that and using the iptables GUI instead seems ok.  I 
didn't recognise anything on google.

I don't see this problem on a similar box running SL7.

http://www.gossamer-threads.com/lists/mythtv/users/585039#585039

John P