Ahh yes, you are correct, it appears to be responding from a different port:
[root@myhost sbin]# ngrep -q -t -P "" -W byline -d any host 1.1.1.1 and udp interface: any filter: (ip) and ( host 1.1.1.1 and udp ) U 2011/06/16 18:07:56.206350 1.1.1.2:59267 -> 1.1.1.1:8080 :ds_list: U 2011/06/16 18:07:56.208460 1.1.1.1:51384 -> 1.1.1.2:59267 200 OK SET_NO:: 1 SET:: 1 URI:: sip:2.2.2.2:6060 flag=A priority=0 attrs= I see in the comments from links you provided that symetric udp exchange was a feature request, do you know if this was ever requested as a new feature? Thanks On 16/06/2011 18:02, Ovidiu Sas wrote: > Perform a tcpdump of the traffic between nc and kamailio. > IIRC, the server replies but from a different port and therefor the > reply is discarded by nc (at least this was the issue with openser 1.x > and I assume that the same issue is present with sip-router). > > See the old reports for openser here: > https://sourceforge.net/tracker/?func=detail&atid=743020&aid=2158069&group_id=139143 > https://sourceforge.net/tracker/?func=detail&atid=1086413&aid=2166279&group_id=232389 > > > Regards, > Ovidiu Sas > > On Thu, Jun 16, 2011 at 12:46 PM, Asgaroth <00asgarot...@gmail.com> wrote: >> Hi All, >> >> I am trying to send a mi command over the mi_datagram udp socket. I dont >> seem to be getting a response back from the server. I am certain that it >> is something I am doing wrong. >> >> I have mi_datagram loaded and listening on udp:1.1.1.1:8080. >> >> I then try to send the following dispatcher mi command over to the mi_dg >> interface: >> >> echo -ne ":ds_list:\n\n" | nc -w 1 -u 1.1.1.1 8080 >> >> I dont see any error in the log file, so it appears that the mi_datagram >> is processing the request, but I am not getting any response back. >> >> The ds_list command works properly if I run it using "kamctl fifo >> ds_list", or if I go via "sercmd mi_dg ds_list" that works too. >> >> Would anyone have an example bash/ksh/perl snippet that would help me on >> my way to communicating with this mi interface. >> >> Any thoughts comments would be greatly appreciated. >> >> Thanks >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users@lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >> > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users