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Iptrace examples software#
However, I'm not seeing that in a tcpdump capture I did with a snapshot length of 128 in the Frame section of the 1500-byte IP datagram, what do the "Frame Length" and "Capture Length" fields say? "Frame Length" *should* say 1514 (I'm assuming from the "1500" that this is IP-over-Ethernet, with a 14-byte Ethernet header) if it's only 128, the file wasn't recorded correctly (or was recorded by software that, for some reason, wasn't able to get the packet's actual length). If by "sequence" you mean TCP sequence number, and the actual packet length as recorded in the file is more than 128 bytes, that would *absolutely* be a Wireshark bug - the captured length should be used in as few places as possible it should *only* be used to check whether particular packet data is actually available in the captured data, it should *never* be used as an indication of how much data there actually *is*.
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Iptrace examples plus#
the next sequence is the current sequence plus the captured length, not the IP packet length. Wireshark is using the capture lengh of 128 instead of the real packet length. The IP header says that it is a 1500 byte packet. Step 8 From any phone in the cluster, make a call to DN 2000 to verify it forwards to DN 3000.With a fairly simple ftp trace where we capture only the first 128 bytes of data, wireshark displays that it did not see the previous segment. Step 7 Save the Trace Configuration information. Step 6 Enable non-device trace at the detailed debug trace level. Step 3 Check the Apply to All Nodes check box to trace node A and node B. Step 2 Choose the Cisco CallManager service for node A. Step 1 From the Cisco CallManager Serviceability window, choose Trace Configuration. Perform the following procedures to set up trace to determine why the Call Forward all Calls from DN 2000 to DN 3000 does not work properly. Because the call is completing, enable trace to determine why the phone does not correctly forward calls. Step 6 Make a call to DN 3000 from any phone in the cluster. In this example, the configuration is correct. Step 5 Use Cisco CallManager Administration to verify the IP phone on node A configuration shows Call Forward all Calls with correctly configured DN information and Calling Search Space. In this example, call the server "node B." Step 4 Use Real-Time Monitoring Tool to locate the Cisco CallManager that has the IP phone with DN 3000 registered. Step 3 Use Cisco CallManager Administration to locate the Cisco CallManager server configured with the IP phone with DN 3000 (the calls from DN 2000 are forwarded here). (Press the Settings button then, scroll to Network Configuration.) Step 2 Go to the IP phone and verify that Cisco CallManager node A is active. In this example, call the server "node A." Step 1 Use the Real-Time Monitoring Tool and Cisco CallManager Administration to locate the Cisco CallManager server that is configured and registered with the IP phone with DN 2000. Perform the following procedure to troubleshoot the customer problem. The customer network includes five Cisco CallManager servers in its cluster. The customer has an IP phone (directory number 2000) that is configured for Call Forward all Calls to another IP phone (directory number 3000). The following list comprises these examples: This appendix contains a sample customer problem and some trace troubleshooting procedures.