ZyXEL Communications Security Camera 3.1 ユーザーズマニュアル

ZyWALL (ZLD) CLI Reference Guide

Use the maintenance tool commands to check the conditions of other devices through the ZyWALL. 
The maintenance tools can help you to troubleshoot network problems.

Here are maintenance tool commands that you can use in privilege mode. 

Maintenance Tools Commands in Privilege Mode

packet-trace [interface interface_name] 

[[ip-proto|ipv6-proto] | protocol_name 

| any}] [src-host {ip | hostname | 

any}] [dst-host {ip | hostname | any}] 

[port {<1..65535> | any}] [file] 

[duration <1..3600>] [extension-filter 

filter_extension]

Sniffs traffic going through the specified interface with the specified 
protocol, source address, destination address, and/or port number.

If you specify 

file

, the ZyWALL dumps the traffic to 

/packet_trace/

packet_trace_interface

. Use FTP to retrieve the files (see 

).

If you do not assign the duration, the ZyWALL keeps dumping traffic until 
you use Ctrl-C.

Use the extension filter to extend the use of this command.

: You can use the name, instead of the number, for some IP 

protocols, such as 

tcp

, 

udp

, 

icmp

, and so on. The names consist of 1-16 

alphanumeric characters or dashes (-). The first character cannot be a 
number.

: You can use up to 252 alphanumeric characters, dashes (-), or 

periods (.). The first character cannot be a period.

: You can use 1-256 alphanumeric characters, spaces, 

or '()+,/:=?;!*#@$_%.- characters.

traceroute {ip | hostname}

Displays the route taken by packets to the specified destination. Use 

Ctrl+c

 to return to the prompt.

traceroute6 {ipv6 | hostname}

Displays the route taken by packets to the specified destination. Use 

Ctrl+c

 to return to the prompt.

[no] packet-capture activate

Performs a packet capture that captures network traffic going through the 
set interface(s). Studying these packet captures may help you identify 
network problems.

The no command stops the running packet capture on the ZyWALL.

Note: Use the packet-capture configure command to configure the 

packet-capture settings before using this command.

packet-capture configure

Enters the sub-command mode.

duration <0..300>

Sets a time limit in seconds for the capture. The ZyWALL stops the capture 
and generates the capture file when either this period of time has passed 
or the file reaches the size specified using the files-size command 
below. 0 means there is no time limit.