NetComm HS1200N User Manual page 89

Utilities for network debugging
The console interface provides several utilities to assist the Administrator to check the system conditions and to debug any
problems. The utilities are described as follows:
Ping host (IP): By sending ICMP echo request to a specified host and waiting for the response to test the network status.
Trace routing path: Trace and inquire the routing path to a specific target.
Display interface settings: It displays the information of each network interface setting including the MAC address, IP address, and
Netmask.
Display the routing table: The internal routing table of the system is displayed, which may help to confirm the Static Route settings.
Display ARP table: The internal ARP table of the system is displayed.
Sniff on interface: This is used to confirm if data packets are passing through the interface.
Display system up time: The system life time (time for system being turned on) is displayed.
Check service status: Check and display the status of the system.
Set device into "safe mode": This is used if the administrator is unable to use Web Management Interface via browser when the
system fails inexplicitly. The administrator can choose this utility and set it into safe mode, which enables him to manage this device
with browser again.
Synchronize clock with NTP server: Immediately synchronizes the clock through the NTP protocol and the specified network time
server. Since this interface does not support manual setup for its internal clock, we must reset the internal clock through the NTP.
Print the kernel ring buffer: It is used to examine or control the kernel ring buffer. The program helps users to print out their boot-up
messages instead of copying the messages by hand.
Main menu: Go back to the main menu.
Change admin password
Besides supporting the use of console management interface through the connection of null modem, the system also supports the
SSH online connection for the setup. When using a null modem to connect to the system console, we do not need to enter
administrator's password to enter the console management interface. The username and password is needed instead when
connecting the system by SSH.
The username is "admin" and the default password is also "admin", which is the same as for the web management interface.
Password can also be changed here. If administrators forget their password and are unable to log in to the management interface
from the web or the remote end of the SSH, they can still use the null modem to connect to the console management interface and
set the administrator's password again.
Caution: Although it does not require a username and password for the connection via the serial port, the same management
interface can be accessed via SSH. Therefore, we recommend you to immediately change the gateway Admin username and
password after your first login to the system.
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