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Harald Welte laforge at gnumonks.orgOn Fri, May 06, 2011 at 09:35:50AM +0300, Alex Badea wrote: > Specifically, I had the gsmtap packets sent over the network (i.e., > non-localhost). There was no UDP listener on the receiving end, such > that ICMP port-unreachable replies were being sent back. It would > appear that this causes the sender's kernel to snub some of the > outgoing packets. I don't know if the same happens on localhost. it happens on localhost, too. > If this is your case, you can try "iptables -I INPUT -p udp -d 4729 -j > DROP", or something like "nc -l -u 4729 > /dev/null". The other workaround is to use "nc -l -u -p 4729 >/dev/null" to create a process that listens on UDP port 4729 and sends all packets to /dev/null. I've recently added a gsmtap_sink to libosmocore. Once we use this from our various projects like OsmocmBB, there will be no need for any of those kludges anymore. -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)