1 TCPTRACE Starts the TCPTRACE utility. Format TCPTRACE host [/BUFFERS=n | /FULL | /OUTPUT |/PACKETS=n | /PORT=option | /PROTOCOL=option] 2 Parameters host Required. Remote host to which you are sending packets for tracing. 2 Qualifiers /BUFFERS /BUFFERS=n Optional. Default: 100. Number of buffers that TCPTRACE allocates for temporary storage. These buffers must be locked into the process working set, so you may have to decrease the number to accomodate the working set size or increase the number to prevent TCPTRACE from dropping packets. /FULL Optional. Default: Brief display. Displays the packet contents. /OUTPUT Optional. Default: Screen display. Redirects the trace output to a file. If you specify a file name that already exists, TCPTRACE appends new trace information to the existing file. /PACKETS /PACKETS=n Optional. Default: 10. Stops the trace after TCPTRACE displays the specified number of packets. /PORT /PORT ={LOCAL | REMOTE}= n Optional. Default: Trace all port numbers. Specifies the local or remote port number to trace. Use in conjunction with the /PROTOCOL qualifier to filter tracing to an exact port and protocol. /PROTOCOL /PROTOCOL = {ARP | ICMP | IP | TCP | UDP} Optional. Default: IP Specifies the protocol to trace. Use in conjunction with the /PORT qualifier to filter tracing to an exact port and protocol. 2 Examples 1.$ TCPTRACE HOST1 /FULL /PORT=REMOTE=21 Traces packets for host HOST1 and remote port number 21. TCPTRACE provides a full display of the packets contents. 2.$ TCPTRACE HOST2 /FULL /PORT=(LOCAL=23, REMOTE=1056) - _$ /PACKETS=30 /OUTPUT=TELNET_TRACE.TXT) Traces packets for host HOST2 with a local port of 23 and remote port number of 1056. TCPTRACE provides a full display of the packets contents. TCPTRACE continues the trace for 30 packets and writes the output to the file TELNET_TRACE.TXT in the current directory.