Frequently Asked Questions; General Faqs - DPS Telecom NetGuardian 832A G5 User Manual

72
15

Frequently Asked Questions

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
15.1

General FAQs

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.
A. In order for data port and craft port changes (including changes to the baud rate and word format) to take
effect, the NetGuardian must be rebooted. Whenever you make changes, remember to write them to the