96
traceroute - traceroute utility for network diagnostics.
upgrade – superuser upgrade the firmware to a newer version. It cannot be used for
downgrade
vconfig - manipulate VLAN configurations
Most commands can be found on UNIX®, for detailed usage, please refer to any UNIX® man
pages. Our support center does not support the usage of these commands.
Adding Commands to WebMux Startup Sequence
Sometimes there is a need to add commands to the WebMux startup sequence so that certain
commands can be reboot persistent. In 8.5.02 firmware release and later, there is a new
superuser command “sysinit” provided for the user to add iptables command or other
commands to the startup sequence. Please note that adding a wrong command to the startup
sequence may render the WebMux not accessible, thus it is always a good practice to test the
commands first before adding it to the WebMux startup sequence.
For example, if you want an SMTP server at 192.168.10.98 always appear to be sent from one
of your public IP addresses (i.e. 66.1.1.98) on the WebMux, you can use this iptables command:
iptables -t nat -I POSTROUTING -s 192.168.10.98 -d ! 192.168.10.98 \ -m multiport -p
tcp —destination-ports 25 -j SNAT —to-source 66.1.1.98
This command works the moment it is issued, but when you reboot the WebMux, it gets lost. To
make it reboot persistent, you want to add it to the WebMux startup sequence. You can use the
sysinit command to add the above command to the sysinit table in the WebMux, so that it will
always be executed during the WebMux startup.
The sysinit command has following syntax:
$ sysinit —help
usage: sysinit [—help] [—quiet] [—write]
—help
print help
—quiet
skip prompts and confirmation
—write
write stdin to superuser’s sysinit script table
(without parameter will read existing table) The superuser’s sysinit table may contain any
commands that are allowed at the superuser’s command prompt. At system startup, it will be
run after networking has been started.
If typing or pasting new input, use control-D for EOF.
$ sysinit —write
sysinit: Enter new script up to EOF (cntl-D): echo AAA >/dev/console
