SNMP-NET
18
Chapter 7 Appendix
Troubleshooting
1. How can I provide a SNTP (Simple Network Timer Protocol) server for SNMP-NET?
Solution: There are two ways to provide a network Time Server for SNMP-NET:
1) Install the SNMP-NET Client software you can find it on the CD.
2) Install the “Simple TCP/IP Services” of “Networking Services” from “Add/Remove
Windows Components”. You may need a Windows CD while installing.
Note:
Do not forget to provide the IP address of the host in the Time Server page.
2. How do I check to make sure the network connection is established between my workstation
and SNMP-NET?
Solution: Check the networking connection by typing the following command “ping HostName or
the IP address” from your workstation.
3. How to refresh the NetBIOS table in Windows operating system?
Solution: Sometimes the IP address of SNMP-NET will be changed but will keep the same host
name, although Windows will update its NetBIOS table periodically, we can force it to
purge its cache immediately by typing the following command “nbtstat -R. After that
you can connect to the SNMP-NET by its host name.
4. How can I get the IP address and MAC address from my computer?
Solution: In the Windows system, type in “ipconfig /all” at the DOS prompt. For Unix system
use “ifconfig” in the shell.
5. Unable to ping or connect to the SNMP-NET device.
Solution: 1) Check all of the network connections.
2) Ensure that your PC and the SNMP-NET are on the same network segment (If you
do not have a router, this must be true).
3) It may be that your "arp table" contains invalid entries. You can clear the "arp
table" by rebooting, or by typing the following command at the command prompt or
Run the dialog box: arp -d
4) You can only connect to the SNMP-NET device if your PC and the SNMP-NET are
using the IP Addresses from the same address block. Normally, private LANs
use IP Addresses from one of the following blocks, which are reserved for this
purpose:
10.0.0.0 ~ 10.255.255.255
172.16.0.0 ~ 172.31.255.255
192.168.0.0 ~ 192.168.255.255
The SNMP-NET's default IP address (192.168.1.100) is from the last block. If
your LAN is using a different address block, then you will NOT be able to connect
to the SNMP-NET device via the LAN. In this case, your choices are:
•
Use Terminal Mode configuration to set the SNMP-NET's IP Address.
•
Use the TCP/IP arp utility to provide a (temporary) IP Address to the SNMP-NET.
•
Change your PC's IP Address to allow connection via the LAN.
