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Table 114: Packet Capture Field Summary (continued)
Your ActionFunctionField
■
To display absolute TCP sequence numbers in
the packet headers, select this check box.
■
To stop displaying absolute TCP sequence
numbers in the packet headers, clear this check
box.
Specifies that absolute TCP sequence numbers are
to be displayed for the packet headers.
Absolute TCP
Sequence
■
To include link-layer packet headers while
capturing packets, select this check box.
■
To exclude link-layer packet headers while
capturing packets, clear this check box.
Specifies that link-layer packet headers are to be
displayed.
Layer 2 Headers
■
To read all packets that reach the interface,
select this check box.
■
To read only packets addressed to the interface,
clear this check box.
Specifies not to place the interface in promiscuous
mode, so that the interface reads only packets
addressed to it.
In promiscuous mode, the interface reads every
packet that reaches it.
Non-Promiscuous
■
To display the packet headers in hexadecimal
format, select this check box.
■
To stop displaying the packet headers in
hexadecimal format, clear this check box.
Specifies that packet headers, except link-layer
headers, are to be displayed in hexadecimal format.
Display Hex
■
To display the packet headers in ASCII and
hexadecimal formats, select this check box.
■
To stop displaying the packet headers in ASCII
and hexadecimal formats, clear this check box.
Specifies that packet headers are to be displayed in
hexadecimal and ASCII format.
Display ASCII
and Hex
You can enter match conditions directly in this field
in expression format or modify the expression
composed from the match conditions you specified
for Addresses, Protocols, and Ports. If you change
the match conditions specified for Addresses,
Protocols, and Ports again, packet capture overwrites
your changes with the new match conditions.
Specifies the match condition for the packets to be
captured.
The match conditions you specify for Addresses,
Protocols, and Ports are displayed in expression
format in this field.
Header
Expression
Type the number of bytes you want to capture for
each packet header—for example, 256.
Specifies the number of bytes to be displayed for
each packet. If a packet header exceeds this size,
the display is truncated for the packet header. The
default value is 96 bytes.
Packet Size
■
To prevent packet capture from resolving IP
addresses to hostnames, select this check box.
■
To resolve IP addresses into hostnames, clear
this check box.
Specifies that IP addresses are not to be resolved
into hostnames in the packet headers displayed.
Don't Resolve
Addresses
■
To stop displaying timestamps in the captured
packet headers, select this check box.
■
To display the timestamp in the captured
packet headers, clear this check box.
Suppresses the display of packet header timestamps.No Timestamp
228 ■ Capturing and Viewing Packets with the J-Web Interface
J-series™ Services Router Administration Guide