With regards to ICMP only. It doesn't allow you to traceroute to specific TCP or UDP ports. Cordially yours, Jerry G. Young II MCSE (4.0/W2K) Atlanta EES Implementation Team Lead HHS Engineering Unisys 11493 Sunset Hills Rd. Reston, VA 20190 Office: 703-579-2727 Cell: 703-625-1468 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. -----Original Message----- From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx] Sent: Friday, January 27, 2006 11:21 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Testing Network Paths for Common Types of Traffic: The Cable Guy - January 2005 http://www.ISAserver.org Pathping (available on Windows since 2K) is hping for Windows... ------------------------------------------------------- Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/Jim_Harrison/ http://isatools.org Read the help / books / articles! ------------------------------------------------------- -----Original Message----- From: Young, Gerald G [mailto:Gerald.Young@xxxxxxxxxx] Sent: Friday, January 27, 2006 07:38 To: [ISAserver.org Discussion List] Subject: [isalist] RE: Testing Network Paths for Common Types of Traffic: The Cable Guy - January 2005 http://www.ISAserver.org One *nix-like tool that would be very kewl to have for Windows is tcptraceroute. This works just like traceroute but allows you to traceroute to a specific TCP port. That's a great tool when you need to determine at which firewall or ACLed router ports are being blocked. Another tool, hping, is available for Windows. This works like tcptraceroute for TCP ports but can also do the same of UDP ports, in addition to just ICMP. However, I have had no success in actually getting it to work. Anyone know of any other tools that run on Windows and provides the same kind of functionality as above? Cordially yours, Jerry G. Young II MCSE (4.0/W2K) Atlanta EES Implementation Team Lead HHS Engineering Unisys 11493 Sunset Hills Rd. Reston, VA 20190 Office: 703-579-2727 Cell: 703-625-1468 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. ________________________________ From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Friday, January 27, 2006 10:02 AM To: [ISAserver.org Discussion List] Subject: [isalist] Testing Network Paths for Common Types of Traffic: The Cable Guy - January 2005 http://www.ISAserver.org Includes helpful tools for testing network traffic through the ISA firewall: Testing Network Paths for Common Types of Traffic: The Cable Guy - January 2005: http://www.microsoft.com/technet/community/columns/cableguy/cg0105.mspx