Service manual

219
SEP 2006
Ver. 1.1
DP-8020E/8020P/8016P
When the packet does not reach the specified destination even when the physical connection is
properly made, check the registered persistent routes on the same subnet as the Unit by typing "route
print" in the DOS command-line. The output display is shown below:
6. Host Name Query on DNS Server
Windows NT 4.0 also has a tool that enables you to test DNS to verify that it is working properly.
This utility is not available on Windows 98/Me.
From the DOS command-line, type "NSLOOKUP" to display the following output:
NS(Name Server) Record in Domain
From the DOS command-line, type "Is -t NS <Domain Name>" to display the following output:
MX(Mail Exchange) Record in Domain
From the DOS command-line, type "Is -t MX <Domain Name>" to display the following output:
A (Address) Record in Domain
From the DOS command-line, type "Is -t A <Domain Name>" to display the following output:
(To leave from this menu, type "exit" on the command-line.)
C:\WINDOWS>route print
Active Routes:
Network Address Netmask Gateway Address Interface Metric
0.0.0.0 0.0.0.0 192.168.3.254 192.168.3.2 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.3.0 255.255.255.0 192.168.3.2 192.168.3.2 1
192.168.3.2 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.3.255 255.255.255.255 192.168.3.2 192.168.3.2 1
224.0.0.0 224.0.0.0 192.168.3.2 192.168.3.2 1
255.255.255.255 255.255.255.255 192.168.3.2 192.168.3.2 1
C:\>nslookup
Default Server: sv1.labo.pcc.com
Address: 192.168.1.1
> ls -t NS labo.pcc.com.
[sv1.labo.pcc.com.]
labo.pcc.com. NS server = sv1.labo.pcc.com
> ls -t MX labo.pcc.com
[sv1.labo.pcc.com]
labo.pcc.com. MX 10 sv2.labo.pcc.com
> ls -t A labo.pcc.com
[sv1.labo.pcc.com]
labo.pcc.com. NS server = sv1.labo.pcc.com
sv1
sv2
ec5
ec4
ef1
A 192.168.1.1
A 192.168.1.4
A 192.168.3.4
A 192.168.3.5
A 192.168.1.2