Configuring the Unit
4.5.2 Set Gateway IP Address
The gateway address, or router, allows communication to other LAN segments. The
gateway address should be the IP address of the router connected to the same LAN
segment as the unit. The gateway address must be within the local network.
4.5.3 Netmask: Number of Bits for Host Part
A netmask defines the number of bits taken from the IP address that are assigned for the
host section.
Note:
Class A: 24 bits; Class B: 16 bits; Class C: 8 bits.
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 9 - 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 10 - 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
4.5.4 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.
Note:
No password is required to access the Setup Mode window via a serial connection.
4-10
XPort™
User Manual and Development Kit