[SR-Users] kamailio 3.1: rtpproxy_sock multiple rtpproxies not working?

hi I have two questions regarding kamailio 3.1 (1) It seems the following format for rtpproxy_sock not working in Kamailio 3.1 modparam("rtpproxy", "rtpproxy_sock", "udp:localhost:12221 udp:localhost:12222") the error is: 0(11881) ERROR: rtpproxy [rtpproxy.c:957]: Name or service not known ////////////////////////// 0(11881) DEBUG: <core> [sr_module.c:871]: DEBUG: init_mod: rtpproxy 0(11881) DEBUG: rtpproxy [rtpproxy.c:531]: url is udp:locahost:22222, len is 18 0(11881) DEBUG: rtpproxy [rtpproxy.c:531]: url is udp:localhost:22222, len is 19 0(11881) DEBUG: <core> [sr_module.c:871]: DEBUG: init_mod: nathelper .... 0(11881) DEBUG: <core> [sr_module.c:828]: DEBUG: init_mod_child (-127): rtpproxy 0(11881) ERROR: rtpproxy [rtpproxy.c:957]: Name or service not known 0(11881) ERROR: <core> [sr_module.c:832]: init_mod_child(): Error while initializing module rtpproxy (/usr/lib/kamailio/modules_k/rtpproxy.so) But if you do the following it is ok modparam("rtpproxy", "rtpproxy_sock","udp:localhost:12221") modparam("rtpproxy", "rtpproxy_sock","udp:localhost:12222") any clue or format changed for rtpproxy_sock? (2) BTW, how do I log stderror into syslog file? -- log_stderror=yes the error will print out in the console, #configure the /etc/syslog.conf for this feature log_facility=LOG_LOCAL1 this log_facility does not log the log_stderror?? Thanks. Kind regards / Mit freundlichen Grüßen Min Wang