DPS NetGuardian 832A, Руководство пользователя

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Frequently Asked Questions 15
Here are answers to some common questions from NetGuardian users. The latest FAQs can be found
on the NetGuardian support web page,
http://www.dpstelecom.com.
If you have a question about the NetGuardian, please call us at (559) 454-1600 or e-mail us at
support@dpstele.com
General FAQs 15.1
Q. How do I telnet to the NetGuardian?
A.
You must use Port 2002 to connect to the NetGuardian. Configure your Telnet client to connect
using TCP/IP ( not "Telnet," or any other port options). For connection information, enter the IP
address of the NetGuardian and Port 2002. For example, to connect to the NetGuardian using the
standard Windows Telnet client, click Start, click Run, and type "telnet <NetGuardian IP address>
2002."
Q. How do I connect my NetGuardian to the LAN?
A.
To connect your NetGuardian to your LAN, you need to configure the unit IP address, the subnet
mask and the default gateway. A sample configuration could look like this:
Unit Address: 192.168.1.100
subnet mask: 255.255.255.0
Default Gateway: 192.168.1.1
Save your changes by writing to NVRAM and reboot. Any change to the NetGuardian's IP
configuration requires a reboot.
Q. When I connect to the NetGuardian through the craft port on the front panel it either
doesn't work right or it doesn't work at all. What's going on?
A. Make sure your using the right COM port settings. Your COM port settings should read:
Bits per second: 9600 (9600 baud)
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None
Important! Flow control must be set to none . Flow control normally defaults to hardware in most
terminal programs, and this will not work correctly with the NetGuardian.
Q. I can't change the craft port baud rate.
A.
If you select a higher baud rate, you must set your terminal emulator program to the new baud rate
and then type DPSCFG and press Enter. If your terminal emulator is set to a slower baud rate than
the craft port, normal keys can appear as a break key — and the craft port interprets a break key as
an override that resets the baud rate to the standard 9600 baud.
Q. How do I use the NetGuardian to access TTY interfaces on remote site equipment?
A.
If your remote site device supports RS-232, you can connect it to one of the eight data ports located
on the NetGuardian back panel. To make the data port accessible via LAN, configure the port for
TCP/IP operation. You now have a LAN-based proxy port connection that lets you access your
device's TTY interface through a Telnet session.
Q. I just changed the port settings for one of my data ports, but the changes did not seem to
take effect even after I wrote the NVRAM.