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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Check the configuration of the Windows Firewall on the client computer. It is configured to refuse most inbound connections by default.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> omniorb-list-bounces@omniorb-support.com [mailto:omniorb-list-bounces@omniorb-support.com] <b>On Behalf Of </b>Nicholas Rodomar<br><b>Sent:</b> Monday, March 21, 2011 11:46 AM<br><b>To:</b> omniorb-list@omniorb-support.com<br><b>Subject:</b> [omniORB] looks like the ORB is not listening on a given port<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>First time posting to this group so bear with me:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We are using the OMNI ORB to work with a CORBA implementation at the Chicago Board Options Exchange (CBOE). We have had our application running successfully on a number of machines but have encountered a problem with a recent install where messages sent from the CBOE in response to our calls seem to be making it to our client but they are not being read by our client ORB. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The trace logs (attached) don’t reveal anything unusual to my (untrained) eye.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ordinarily, when the ORB is up and running with our client application one can telnet the client IP and port (in this case 8101) and establish a session but when we try on this client we can’t telnet the machine and port so it seems to me that for some reason the ORB is not listening.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The system details are as follows:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Operating system is Windows 7 64 bit<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>omniORB version is 4.1.4-x86_win32-vs7<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>the client sends to the CBOE over port 8102 and receives via port 8101<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have triple checked the settings (registry entry, ORB end point, host file entry etc.). There is no firewall enabled. We’ve tested this application on Windows 7 successfully before. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If no-one has encountered this problem any suggestions on next steps for troubleshooting would be much appreciated. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Nicholas<o:p></o:p></p></div></body></html>