[OpenSER-Users] Question about proxy_authorization

Hi, I am not able to proxy_authorize a INVITE request from UA if the US connects to Opnerser using Openser's public IP. I am wonering if there is any additional setting I need to enable that? From the log, Openser does recognize '88,251.97.47' as a local domain. I did not hard-code the private ip anywhere in openser.cfg. Tue Jun 3 03:20:05 2008-58.251.97.17::method <INVITE> r-uri < sip:1005@58.251.97.17 &lt;sip%3A1005(a)58.251.97.17&gt;&gt; to-tag <<null>> 2nd via <<null>> to-header <sip:1005@58.251.97.17 &lt;sip%3A1005(a)58.251.97.17&gt;&gt; from-header <sip:1006@58.251.97.17 &lt;sip%3A1006(a)58.251.97.17&gt;&gt; auth-user <1006> Jun 3 03:20:05 [27566] DBG:maxfwd:is_maxfwd_present: value = 70 before fix nated contact Jun 3 03:20:05 [27566] DBG:core:parse_headers: flags=80 checking to see if setflag should do or not Jun 3 03:20:05 [27566] DBG:uri:has_totag: no totag Jun 3 03:20:05 [27566] DBG:core:parse_headers: flags=78 Jun 3 03:20:05 [27566] DBG:tm:t_lookup_request: start searching: hash=29544, isACK=0 Jun 3 03:20:05 [27566] DBG:tm:matching_3261: RFC3261 transaction matching failed Jun 3 03:20:05 [27566] DBG:tm:t_lookup_request: no transaction found it is not a REGISTER, so going to route 3 Jun 3 03:20:05 [27566] DBG:domain:is_domain_local: Realm '88,251.97.47' is local Jun 3 03:20:05 [27566] DBG:core:db_free_rows: freeing 1 rows Jun 3 03:20:05 [27566] DBG:core:db_free_rows: row[0]=0x81a1e18 Jun 3 03:20:05 [27566] DBG:core:db_free_rows: 0x81a1e18=pkg_free() RES_ROWS request is from a non-trusted domain Jun 3 03:20:05 [27566] DBG:auth:check_nonce: comparing [4844491107980b084e3d5d3a283446ad02324d49] and [4844491107980b084e3d5d3a283446ad02324d49] Jun 3 03:20:05 [27566] DBG:auth:check_response: our result = '578a6ec1af28eed79329ed5414313f43' Jun 3 03:20:05 [27566] DBG:auth:check_response: authorization failed Thanks in advance for your help. Regards, Mark