User's Manual

Chapter 7 Data testing
Capturing network traffic
SmartClass TPS User’s Guide
66 22035456, Rev 001 May 2014
3 Specify the Packet Capture settings. The following table describes the settings.
4 Select Packet Capture Menu
5 Press the # key to start the capture.
Captured information is saved to the file. If you have a USB storage device connected, it will
be saved there. If not, the file will be saved to the SmartClass Triple Play Services file system.
You have captured network traffic.
Setting Description
Filename Name of the file where the captured packets are saved.
Packet limit The packet limit indicates how much information can be stored in the capture
file (in other words, the size of the capture file). You can specify from 1 to
10000000 packets. When the maximum file size has been reached, the
SmartClass Triple Play Services automatically stops capturing packets.
Promiscuous mode Enabling Promiscuous mode causes the SmartClass Triple Play Services to
capture all IP traffic regardless of source or destination addresses.
Use IP filter Specify whether to filter messages by IP address (No will disable the filter).
IP Filter If you selected “Yes” to Use IP filter, enter an IP address to filter on.
Only information from the IP address you entered will be captured.
Use Port Filter Specify whether to filter messages by port (No will disable the filter).
Port Filter If you selected “Yes” to Use Port Filter, enter the port number to filter on.
You can enter a number from 2 to 65534. Only messages from the port you
entered will be captured.
Use Custom Filter Specify whether to filter messages using a custom filter (No will disable the fil-
ter)
Custom Filter If you selected “Yes” to Use Custom Filter, enter a text string using the key-
pad. Some commonly used strings are as follows:
– tcp - captures only TCP packets
– udp - captures only UDP packets
– igmp - captures only IGMP packets
– not tcp - captures all packets except TCP
– less 1000 - captures all packets less than 1000 bytes in length
– greater 1000 - captures all packets greater than 1000 bytes in length.
NOTE:
The Start key is only available if a valid network connection is present.
CAUTION: CORRUPTED DATA
Removing the USB drive during a file capture or file save may corrupt the data. Do not remove
the drive until all files have been saved or the packet capture is complete.