ZyXEL Communications USG-50 - V2.21 ED 1 Guia do Utilizador descarregar pdf (Página 342)

Chapter 45 Packet Flow Filter

ZyWALL (ZLD) CLI Reference Guide

342

45.3 Packet Flow Filter Commands Examples

The following example configures packet flow filter 1 to display how the firewall and policy routes

handle UDP (protocol 17) traffic with source port 123 sent from IP address 1.2.3.4 to IP address

5.6.7.8, port 456. Then it turns on the packet flow filter.

This example displays whether or not the packet flow filter is activated and whether the ring buffer

is enabled or disabled.

exit Leaves the sub-command mode.

[no] packet-flow activate Turns the packet flow filter on or off.

show packet-flow status Displays whether or not the packet flow filter is activated and whether the ring

buffer is enabled or disabled.

show packet-flow buffer

[pf_cpu_core_num]

Displays the details of the captured packet flow.

show packet-flow filter

pf_filter_num_range

Displays the specified packet flow filter’s settings.

packet-flow buffer clear

pf_cpu_core_num

Clears the specified CPU core’s buffer.

packet-flow buffer write Writes buffer content (of all CPU cores) to a file you can download from the FTP /

tmp directory.

[no] packet-flow ring-buffer

activate

Activate the packet flow ring buffer to overwrite the oldest record with the

newest record. Use the no command to stop to capture packet after the buffer is

full.

Table 203 Packet Flow Filter Commands (continued)

COMMAND DESCRIPTION

Router> configure terminal

Router(coonfig)#packet-flow filter 1

Router(coonfig-packet-flow-filter 1)#source 1.2.3.4

Router(coonfig-packet-flow-filter 1)#destination 5.6.7.8

Router(coonfig-packet-flow-filter 1)#src-port 123

Router(coonfig-packet-flow-filter 1)#dst-port 456

Router(coonfig-packet-flow-filter 1)#protocol 17

Router(coonfig-packet-flow-filter 1)#enable

Router(coonfig-packet-flow-filter 1)#exit

Router(config)#packet-flow activate

Router(config)#exit

Router#

Router> show packet-flow status

Packet Flow Debugger Status:

Activation: Yes

Ring Buffer: Disabled

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