MB Connect Line mbNET.rokey RKH 210, Руководство пользователя

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Designation Description
TCPDUMP In order to closely monitor the network traffic, you can use the "TCPDUMP” com-
mand. Some examples of the use of this command are:
•
-i eth0 not port 80
Displays all TCP/IP connections to the (-i) LAN (eth0) interface, except (not)
those using Port 80 (port 80) when incoming or outgoing.
•
-i eth1 port 23
Displays all TCP/IP connections to the (-i) WAN (eth1) interface using Port 23
(port 23) when incoming or outgoing.
•
-vvv -i eth1
Displays all traffic in verbose mode, Level3 (-vvv) on the (-i) WAN (eth1) inter-
face.
You can find detailed TCPDUMP documentation at www.tcpdump.org
Port Check You can use this function to check the status of a port (open / not open) in connection
with an Internet or IP address.
21.2.1 Output of device diagnostic information to a USB stick
To make it easier to analyze why a device is not connecting, you can output/save the device diagnostic infor-
mation locally to a USB stick.
1. Create an empty text file called "device.debug" and save the file ("Save as") to a USB stick.
You can use any simple text editor for this.
2. Insert the USB stick into the mbNET.
The mbNET writes the diagnostic information directly into the file ("device.debug").
N O T I C E
During the write process, the mbNET status LED flashes green.
The USB stick must not be removed while the status LED is flashing.
When the status LED has stopped flashing, the USB stick can be removed and the file can be read from
the USB stick.
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