Bosch D9412GV2 Troubleshooting Manual page 85

.
Using the ARP Command to Assign or Confirm an IP
Address
1. Obtain the Internet address (IP address) from the
network administrator.
The IP address is an identifier for a
computer or device on a TCP/IP network
and allows the network to route messages
based upon the IP address of the
destination.
Within an isolated network, IP addresses
can be assigned at random if each address
is unique. Connecting a private network to
the Internet requires using registered IP
addresses (Internet addresses).
The format of an IP address is a 32-bit
numeric string written as four numbers
separated by periods. Each number can be
zero to 255. For example, 172.17.10.70
could be an IP address.
In the following examples, the letter "x" is
used to indicate all digits. If any of the four
elements in the string have fewer than three
digits, no leading zeros are used.
xxx.xxx.xxx.xxx
xx.xx.xx.xx
x.x.x.x
xxx.xx.x.xxx
2. Identify the physical address (MAC hardware
address) on the network interface module (NIM).
The MAC hardware address is located on a
label on the large metal box soldered to the
DX4020 or D9133TTL-E Network Interface
Module.
The MAC address has twelve characters in
pairs, separated by hyphens. In the
following example, the letter "z" is used to
indicate all characters.
zz-zz-zz-zz-zz-zz
3. Open a DOS window from the Start menu by
selecting Start Run.
4. At the Run dialog box, type COMMAND and click
OK. A DOS window appears. Refer to
Bosch Security Systems, Inc. | 11/05 | F01U011024B
D9412GV2/D7412GV2 | Troubleshooting Guide | 3.0 Troubleshooting
Figure 41: DOS Window
5. At the DOS command line, enter the ARP
command:
a. Type: arp –s
b. Press [SPACE].
Type the IP address and press [SPACE].
Type the MAC hardware address and press [ENTER].
Refer to Figure 42
Figure 42: ARP.EXE Command Syntax
ar p - s xxx. xxx. xxx. xxx zz- zz- zz- zz- zz- zz
1 xxx.xxx.xxx.xxx = the IP address assigned to the
NIM by the network administrator
2 zz-zz-zz-zz-zz-zz = the MAC hardware address
found on the NIM
6. Following your command, the computer responds
with a DOS prompt to indicate the address was
accepted.
7. To confirm that the IP address was correctly
entered into the ARP table, type:
arp -g [ENTER]
An "interface" table appears on the screen. Refer
to Figure 43
8. Check the interface table for the addresses you
entered.
and the corresponding MAC hardware address.
Figure 41 .
The third line of the interface table in
shows the sample MAC address 00-20-4a-51-
19-8c temporarily linked to IP address
172.17.10.70.
.
1 2
No indication is provided if the operation
is performed correctly. The absence of an
error message is your indication that the
function is correct.
on page 86.
Figure 43 on page 86 shows the IP address
Figure 43
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