How to configure port speed / duplex mode on a USG / ZyWall

In an earlier version of the ZyWALL/USG there has been a bug where the port-negotiation was not working correctly.
As you are not able to configure this via web interface, you need to connect to the device via ssh/telnet or console cable and use a terminal program like Putty or Tera Term.

 

To change the configuration, you need to use the CLI command to configure the port so it can negotiate automatically.

Router# configure terminal

Router(config)# port status Port1

Router(config-port-status)# negotiation auto

Router(config-port-status)# exit

Router(config)# write

Use the following command to see the current status of each port:

show port status

The same procedure can also be used to set a static port speed.
Please see the below commands for your reference:

show port-grouping
Displays which physical ports are assigned to each representative interface.
port status port 1
Enters a sub-command mode to configure the specified port´s settings
  • [no] duplex <full | half>
Sets the port´s duplex mode. The no command returns the default setting.
  • exit
Leaves the sub-command mode.
  • [no] speed <100, 10>
Sets the ethernet port connection speed in Mbps. The no command returns the default setting.
show port setting
Displays the ethernet port negotiation, duplex and speed settings.
show port status
Displays statistics for the ethernet port.
show port statistics portx interval <5 ... 3600>
Displays the specified port´s statistics and updates them according to the interval you set.

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