[Users] Digest Authentication Problem with header parsing problem

hi all; i'm trying to activate digest authentication with mysql, but i see a strange parsing error in the logs. here is my logser log ================== Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: New request - M=REGISTER RURI=sip:server_public_ip_address F=<null> T=sip:apo@server_public_ip_address IP=ua_public_ip_address ID=NWYyZGNjMWRjYjFlNTk5YjlhMjE5ODA4MWQ0ZGFiNTY. Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: DEBUG:maxfwd:is_maxfwd_present: value = 70 Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: parse_headers: flags=200 Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: get_hdr_field: cseq <CSeq>: <1> <REGISTER> Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: DEBUG: get_hdr_body : content_length=0 Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: found end of header Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: find_first_route: No Route headers found Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: loose_route: There is no Route HF Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: parse_headers: flags=ffffffffffffffff Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: check_via_address(ua_public_ip_address, ua_public_ip_address, 0) Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: parse_headers: flags=4000 Apr 1 13:39:04 testsrv200 /usr/local/sbin/openser[577]: pre_auth(): Credentials with given realm not found ] in status 6: <<"apo"<sip:apo@ua_public_ip_address;tag=5d692f7d>> . R: parse_to : unexpected char [ Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: ERROR:parse_from_header: bad from header Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: set_err_info: ec: 1, el: 3, ei: 'error parsing From' Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: xl_get_from_attr: ERROR cannot parse FROM header Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: Register authentication failed - M=REGISTER RURI=sip:server_public_ip_address F=<null> T=sip:apo@server_public_ip_address IP=ua_public_ip_address ID=NWYyZGNjMWRjYjFlNTk5YjlhMjE5ODA4MWQ0ZGFiNTY. Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: build_auth_hf(): 'WWW-Authenticate: Digest realm="server_public_ip_address", nonce ' 60f8cf5a7a5eb40c26f914280272b51f58caaa7" Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: parse_headers: flags=ffffffffffffffff Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: check_via_address(ua_public_ip_address, ua_public_ip_address, 0) Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: DEBUG:destroy_avp_list: destroying list (nil) Apr 1 13:39:05 testsrv200 /usr/local/sbin/openser[577]: receive_msg: cleaning up and sip msg received at the server side ============================== U ua_public_ip_address:28443 -> 192.168.200.2:5060 REGISTER sip:server_public_ip_address SIP/2.0. Via: SIP/2.0/UDP ua_public_ip_address:28443;branch=z9hG4bK-d87543-08523511e5151c18-1--d87543-;rport. Max-Forwards: 70. Contact: <sip:apo@ua_public_ip_address:28443;rinstance=1ff3024a97431241>. To: "apo"<sip:apo@server_public_ip_address>. From: "apo"<sip:apo@ua_public_ip_address;tag=5d692f7d. Call-ID: NWYyZGNjMWRjYjFlNTk5YjlhMjE5ODA4MWQ0ZGFiNTY.. CSeq: 1 REGISTER. Expires: 3600. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO. User-Agent: X-Lite release 1006e stamp 34025. Content-Length: 0. . # U 192.168.200.2:5060 -> ua_public_ip_address:28443 SIP/2.0 100 Trying. Via: SIP/2.0/UDP ua_public_ip_address:28443;branch=z9hG4bK-d87543-08523511e5151c18-1--d87543-;rport=28443. To: "apo"<sip:apo@server_public_ip_address>. From: "apo"<sip:apo@ua_public_ip_address;tag=5d692f7d. Call-ID: NWYyZGNjMWRjYjFlNTk5YjlhMjE5ODA4MWQ0ZGFiNTY.. CSeq: 1 REGISTER. Server: OpenSER (1.2.0-notls (x86_64/linux)). Content-Length: 0. . # U 192.168.200.2:5060 -> ua_public_ip_address:28443 SIP/2.0 401 Unauthorized. Via: SIP/2.0/UDP ua_public_ip_address:28443;branch=z9hG4bK-d87543-08523511e5151c18-1--d87543-;rport=28443. To: "apo"<sip:apo@server_public_ip_address>;tag=329cfeaa6ded039da25ff8cbb8668bd2.4f01. From: "apo"<sip:apo@ua_public_ip_address;tag=5d692f7d. Call-ID: NWYyZGNjMWRjYjFlNTk5YjlhMjE5ODA4MWQ0ZGFiNTY.. CSeq: 1 REGISTER. WWW-Authenticate: Digest realm="server_public_ip_address", nonce="460f8cf5a7a5eb40c26f914280272b51f58caaa7". Server: OpenSER (1.2.0-notls (x86_64/linux)). Content-Length: 0. openser.cfg file register section ======================================= # Request route 'base-route-register' ######################################################################## route[2] { sl_send_reply("100", "Trying"); if(!www_authorize("server_public_ip_address", "subscriber")) { xlog("L_INFO", "Register authentication failed - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); www_challenge("server_public_ip_address", "0"); exit; } if(!check_to()) { xlog("L_INFO", "Spoofed To-URI detected - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_send_reply("403", "Spoofed To-URI Detected"); exit; } consume_credentials(); if(!search("^Contact:[ ]*\*") && nat_uac_test("19")) { fix_nated_register(); setbflag(6); } if(!save("location")) { xlog("L_ERR", "Saving contact failed - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); sl_reply_error(); exit; } xlog("L_INFO", "Registration successful - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); exit; }