Juniper J-Series Administration Manual page 251

Table 114: Packet Capture Field Summary (continued)
Field Function
Write Packet Writes the captured packets to a file in PCAP format
Capture File
in /var/tmp
jweb-pcap
If you select this option, the decoded packet headers
are not displayed on the packet capture page.
Packet Capture Results and Output Summary
Figure 25 on page 229 shows J-Web packet capture output from
of detail set to
capture display.
Figure 25: Packet Capture Results Page
Table 115: J-Web Packet Capture Results and Output Summary
Field Description
Time when the packet was captured. The timestamp
timestamp
minutes, and 40.823971 seconds.
NOTE: The time displayed is local time.
Direction of the packet. Specifies whether the packet originated from the Routing Engine (
direction
destined for the Routing Engine (
Protocol for the packet.
protocol
In the sample output,
Hostname, if available, or IP address and the port number of the packet's origin. If the Don't Resolve
source address
Addresses check box is selected, only the IP address of the source is displayed.
NOTE: When a string is defined for the port, the packet capture output displays the string instead of the
port number.
Hostname, if available, or IP address of the packet's destination with the port number. If the Don't Resolve
destination address
Addresses check box is selected, only the IP address of the destination and the port are displayed.
NOTE: When a string is defined for the port, the packet capture output displays the string instead of the
port number.
Protocol for the packet.
protocol
In the sample output,
. The files are named with the prefix
and the extension .
.pcap
. Table 115 on page 229 summarizes the output in the packet
brief
ERROR: Unresolved graphic fileref="s020268.gif" not found in
"\\teamsite1\default\main\TechPubsWorkInProgress\STAGING\images\".
indicates the Layer 3 protocol.
IP
TCP indicates the Layer 4 protocol.
Chapter 12: Using Services Router Diagnostic Tools
Your Action
To save the captured packet headers to a file,
select this check box.
To decode and display the packet headers on
the J-Web page, clear this check box.
00:45:40.823971
).
In
Capturing and Viewing Packets with the J-Web Interface
, with the level
router1
means 00 hours (12.00 a.m.), 45
), or was
Out
229