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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

Lantronix XPort User Manual

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