Packet Capture Field Summary, Ge-0/0/0 | Juniper Networks J-Series

Chapter 12: Using Services Router Diagnostic Tools

■To stop capturing packets and return to the Packet Capture page, click OK.

Figure 24: Packet Capture Page

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Field	Function
Interface	Specifies the interface on which the packets are
	captured.
	If you select default, packets on the Ethernet
	management port 0, are captured.
Detail level	Specifies the extent of details to be displayed for the
	packet headers.
	■ Brief—Displays the minimum packet header
	information. This is the default.
	■ Detail—Displays packet header information in
	moderate detail.
	■ Extensive—Displays the maximum packet
	header information.
Packets	Specifies the number of packets to be captured.
	Values range from 1 to 1000. Default is 10. Packet
	capture stops capturing packets after this number
	is reached.
Addresses	Specifies the addresses to be matched for capturing
	the packets using a combination of the following
	parameters:
	■ Direction—Matches the packet headers for IP
	address, hostname, or network address of the
	source, destination or both.
	■ Type—Specifies if packet headers are matched
	for host address or network address.
	You can add multiple entries to refine the match
	criteria for addresses.
Protocols	Matches the protocol for which packets are captured.
	You can choose to capture TCP, UDP, or ICMP
	packets or a combination of TCP, UDP, and ICMP
	packets.
Ports	Matches packet headers containing the specified
	source or destination TCP or UDP port number or
	port name.

Your Action

From the list, select an interface—for example,

From the list, select Detail.

From the list, select the number of packets to be captured—for example, 10.

Select address-matching criteria. For example:

1.From the Direction list, select source.

2.From the Type list, select host.

3.In the Address box, type 10.1.40.48.

4.Click Add.

From the list, select a protocol—for example, tcp.

Select a direction and a port. For example:

1.From the Type list, select src.

2.In the Port box, type 23.