918 Matrix ETERNITY NE System Manual
PCAP Trace
ETERNITY NE supports PCAP Trace, which you can use to detect and diagnose network related problems for the
Ethernet Port of ETERNITY.
Packets traveling over a network are captured and saved in the system. You can save these trace files (packets
captured by the system) on a computer and open these trace files using a graphical packet capture and protocol
analysis tool such as Wireshark or Ethereal.
PCAP Trace for the Ethernet Port allows a maximum of 1 MB of packets can be captured and stored in the
ETERNITY.
ETERNITY also supports Filters and 'Promiscuous' mode for capturing packets, which you can use to specify the
types of data packets to be captured.
How to use
To use PCAP Trace for the Ethernet Port of ETERNITY,
• Open Jeeves. Log into Jeeves as System Engineer.
• Click the Administrator link.
• Click the Maintenance link under Administrator.
• Click the link PCAP Trace to open the page.
• In the Filter Settings, decide the type of packets to be captured and set the Filter accordingly. The Filter
should be maximum 60 characters in length; all ASCII characters are allowed. By default, this field is
blank. So all packets will be captured.
Refer to the following examples to know how to set the Filters.
• To capture only SNMP traces:
• Filter Settings = port 161
Where, 161 is the SNMP Port number for which the traces are to be captured.
• To capture packets which are transmitted from the system i.e. from IP address 192.168.1.191:
• Filter Settings = src 192.168.1.191
• To capture packets which are received for the system i.e. to IP address 92.168.1.191:
• Filter Settings = dst 192.168.1.191
• To capture only packets which are received by the system having IP address 192.168.1.191:
• Filter Settings = src 192.168.1.191 or dst 192.168.1.191
• To capture packets which are transmitted from the system for particular port number only i.e. from IP
address 192.168.1.191 and port number 161:
• Filter Settings = src 192.168.1.191 and port 161
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