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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

Traffic Capture: Difference between revisions

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[[File:clueless-line-diag-on-a-bt-line.png|border]]
 
This will perform a traffic capture of your line (or lines if you have more than one). You can then view the capture on the page or download a pcap file which can be viewed with other software - e.g. [https://www.wireshark.org/ Wireshark], this makes viewing and analyzing the traffic easier.
 
This will perform a traffic capture of your line (or lines if you have more than one). You can then view the capture on the page or download a pcap file which can be viewed with other software - e.g. Wireshark.
 
==Example==
 
[[File:Traffic-dump.png|800px|none|frame|Traffic capture example]]
 
Here is a simple example, which actually only shows a few ICMP pings.
 
The Fields are:
*Destination IP Address and port
*Packet type, eg ICMP echo reply
 
== Clues to look for ==
 
Using the traffic dump tool can be good to diagnose a slow connection. ie, if you have loads of traffic on your line, the line will become slow. Using the Traffic Dump tool you'll be able to see what the traffic is, and that may then help pin point the source of the traffic.
 
==Example==
 
[[File:Traffic-dump.png|800px|none|frame|Traffic capture example]]
 
Here is a simple example, which actually only shows a few ICMP pings.
 
You will see our LCP echos every second, these are used to monitor the line and are used to create our CQM Graphs, they looks like this:
14:54:32.577431 Rx length 30: [ses 0x3776] LCP (0xc021), length 10: LCP, [|LCP]
 
 
The pcap file can be downloaded and opened in a viewer program such as [https://www.wireshark.org/ Wireshark], this makes viewing and analyzing the traffic easier.
 
==Access==
autoreview, Bureaucrats, editor, Interface administrators, reviewer, Administrators
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