> -A INPUT -m state --state NEW -m udp -p udp --sport 49152:49153 > --dport 1024:65535 -j ACCEPT >
You should just need 49152 to be open. The broadcasts only occur on the control port. > Appears to allow uhd_find_devices to do its thing. Glad to hear it! > > Any protocol that does "discovery" using a UDP broadcast, followed by > a unicast reply will run into trouble with iptables, which is why Basically the firewall lets devices talk back through port that initiated the conversation. Because of this, UHD sends an data packet into the USRP2 even for receive only applications. :-) However, this simple firewall rule will not, in the case of a broadcast open a reply hole for every device talking through that port. I guess its just another one of those things you do to prepare a host system for use. Just like setting up udev, or sysctl limits. -josh _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
