Lantronix XPress-DR XPress-DR / XPress-DR-IAP - User Guide - Page 59

Change Telnet configuration password, Table 8 - Standard IP Network Netmasks

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Configure The unit prompts for the number of host bits to be entered, then calculates the netmask, which is displayed in standard decimal-dot notation when the saved parameters are displayed (for example, 255.255.255.0). Table 8 - Standard IP Network Netmasks Network Class Host Bits Netmask A 24 255.0.0.0 B 16 255.255.0.0 C 8 255.255.255.0 Table 9 - Netmask Examples Netmask Host Bits 255.255.255.252 2 255.255.255.248 3 255.255.255.240 4 255.255.255.224 5 255.255.255.192 6 255.255.255.128 7 255.255.255.0 8 255.255.254.0 9 255.255.252.0 10 255.255.248.0 11 ... ... 255.128.0.0 23 255.0.0.0 24 3.5.4 Change Telnet configuration password Setting the Telnet configuration password prevents unauthorized access of the setup menu via a Telnet connection to port 9999 or via Web pages. The password is limited to 4 characters. An enhanced password setting of 16 characters is available under Security Settings for Telnet access only. Passwords are alphanumeric and case sensitive. Note: No password is required to access the Setup Mode window via a serial connection. DSTni-XPress DR User Guide 3-13

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Configure
The unit prompts for the number of host bits to be entered, then calculates the netmask, which
is displayed in standard decimal-dot notation when the saved parameters are displayed (for
example, 255.255.255.0).
Table 8 - Standard IP Network Netmasks
Network Class
Host Bits
Netmask
A
24
255.0.0.0
B
16
255.255.0.0
C
8
255.255.255.0
Table 9 - Netmask Examples
Netmask
Host Bits
255.255.255.252
2
255.255.255.248
3
255.255.255.240
4
255.255.255.224
5
255.255.255.192
6
255.255.255.128
7
255.255.255.0
8
255.255.254.0
9
255.255.252.0
10
255.255.248.0
11
...
...
255.128.0.0
23
255.0.0.0
24
3.5.4 Change Telnet configuration password
Setting the Telnet configuration password prevents unauthorized access of the setup menu via
a Telnet connection to port 9999 or via Web pages. The password is limited to 4 characters.
An enhanced password setting of 16 characters is available under Security Settings for Telnet
access only. Passwords are alphanumeric and case sensitive.
Note: No password is required to access the Setup Mode window via a serial connection.
DSTni-XPress DR User Guide
3-13