Bosch D9412GV2 Troubleshooting Manual page 89

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Setting or Changing the Number of Host Bits for the
Netmask Address
Initial Actions
Obtain the correct gateway address, Netmask address,
and number of host bits for the NIM.
Use this procedure with Windows 2000 or
Windows XP.
For Windows 2000, you must log in with
an Administrator privilege level.
Procedure
1. Open a DOS window from the Start menu by
selecting Start Run.
2. At the Run dialog box, type COMMAND and click
[OK].
3. A command prompt window appears. Refer to
Figure 49 on page 88.
4. At the C:\> prompt, type telnet and press
[ENTER]. Refer to Figure 45
5. At the Microsoft Telnet> prompt, type:
a. open
b. a space and the IP address
c. another space and 1
Example: open 172.17.10.70 1
Refer to Figure 46
The connection fails the first time. This is
normal.
6. Press [F3] to show the last line typed.
7. Backspace over the 1 and type: 9999
Example: open 172.17.10.70 9999
Figure 50: Port 9999
8. Press [ENTER] to show the setup menu.
9. Press [ENTER] repeatedly until asked to set the
Gateway address.
10. Type [Y] and the gateway IP address.
11. Press [ENTER].
12. The following text appears:
Bosch Security Systems, Inc. | 11/05 | F01U011024B
D9412GV2/D7412GV2 | Troubleshooting Guide | 3.0 Troubleshooting
on page 86.
on page 87.
13. If the number of host bits needs to change from
the default, enter the number of bits that
correspond to the Netmask your network is using
(Refer to Table 48). If using DHCP, press
[ENTER].
See your network administrator for more
information.
14. Press [ENTER] after entering the correct number
of bits for the Netmask address.
Table 48: Netmask Addresses
Host Netmask
Bits
1 255.255.255.254
2 255.255.255.252
3 255.255.255.248
4 255.255.255.240
5 255.255.255.224
6 255.255.255.192
7 255.255.255.128
8 255.255.255.0
9 255.255.254.0
10 255.255.252.0
11 255.255.248.0
12 255.255.240.0
13 255.255.224.0
14 255.255.192.0
15 255.255.128.0
16 255.255.0.0
Host Netmask
Bits
17 255.254.0.0
18 255.252.0.0
19 255.248.0.0
20 255.240.0.0
21 255.224.0.0
22 255.192.0.0
23 255.128.0.0
24 255.0.0.0
25 254.0.0.0
26 252.0.0.0
27 248.0.0.0
28 240.0.0.0
29 224.0.0.0
30 192.0.0.0
31 128.0.0.0
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