For testing connectivity between two ports, try telnetting to the port .. For example if you have "Server1" - 192.168.0.1 and you need to see if "Router A" can access "Server1" on a particular port (say port 110, on Router A: Router A# telnet 192.168.0.1 110 You can also specify a source interface on the router .. For example you have interface E0 192.168.2.1 and E1 192.168.3.1 and you need to see if the 192.168.3.0 network can reach that port on Server1: Router A# telnet 192.168.0.1 110 /source-interface Ethernet 1 Is this what you meant you wanted to do? Regards, Em -----Original Message----- From: Chee Tong Sim To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: 8/10/00 3:58 AM Subject: Is there a command to test a connection using a specific port Dear friends, 1)Is there a command to test a connection using a specific port? I have a X windows client which was removed from segment to another in the remote site, the client use specific port to talk to server after the relocation, the client cannot talk to the server in our site. But we can ping to the client from our site, so we suspect the access list problem Because there are too many router in between and two back bone switch, we checked all access list but nothing found wrong. Is there a cisco command to test a connection between two site using specific port?? 2) I have a back bone switch with RSM module, so I have two configuration file, 1 for router and 1 for switch. I understand the router module but not switch module. Can access-list applied on the switches module?? or is there a way to block the specific port connection in the switches module?? ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]