User manual

CRADLEPOINT CBA750B | USER MANUAL Firmware version 5.0

IPv4 Settings:

IP Address: This is the address used by the router for local area network communication. Changes to this parameter may

require a restart to computers on this network.

Each network must have a distinct IP address. Most users

will want an address from one of the following private IP

ranges:

• 10.0.0.1 - 10.255.255.1

• 172.16.0.1 - 172.31.255.1

• 192.168.0.1 - 192.168.255.1

NOTE: The final number does not have to be 1, but it is a simple,

logical convention for routers that leaves higher numbers free for

other devices.

Netmask: (Default: 255.255.255.0) The netmask controls

how many IP addresses can be used in this network. The

default value allows for 254 IP addresses.

IPv4 Routing Mode: (Default: NAT) Each network can

use a unique routing mode to connect to the Internet and

other local networks. NAT is desirable for most

configurations. Select from the following options in the

dropdown list:

• NAT: Network Address Translation hides private IP addresses behind the router's IP address. This is the simplest

and most common choice for users, because NAT does the translation work for you.

• Standard: NAT-less routing. If you select Standard, you must separately configure your IP addresses so that they

will be publically accessible. Typically you will not select this option unless you have a specific reason to bypass

NAT.

• IP Passthrough: IP Passthrough passes the IP address given by a cellular modem (WAN) through the router to

Ethernet (LAN). The easiest way to enable IP Passthrough mode is with the IP Passthrough Setup Wizard (see

Getting Started → IP Passthrough Setup).

• Disabled: Disable this network.