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Cambium Networks PMP 450 AP Planning And Installation Guide

Cambium Networks PMP 450 AP
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Chapter 3: System planning Data network planning
Page
3-38
Data network planning
This section describes factors to be considered when planning 450 Platform Family data networks.
Understanding addresses
A basic understanding of Internet Protocol (IP) address and subnet mask concepts is required for
engineering your IP network.
IP address
The IP address is a 32-bit binary number that has four parts (octets). This set of four octets has two
segments, depending on the class of IP address. The first segment identifies the network. The second
identifies the hosts or devices on the network. The subnet mask marks a boundary between these two
sub-addresses.
Dynamic or static addressing
For any computer to communicate with a module, the computer must be configured to either
• use DHCP (Dynamic Host Configuration Protocol). In this case, when not connected to the network,
the computer derives an IP address on the 169.254 network within two minutes.
• have an assigned static IP address (for example, 169.254.1.5) on the 169.254 network.
When a DHCP server is not found
To operate on a network, a computer requires an IP address, a subnet mask, and possibly a gateway
address. Either a DHCP server automatically assigns this configuration information to a computer on a
network or an operator must input these items.
When a computer is brought on line and a DHCP server is not accessible (such as when the server is
down or the computer is not plugged into the network), Microsoft and Apple operating systems default
to an IP address of 169.254.x.x and a subnet mask of 255.255.0.0 (169.254/16, where /16 indicates that
the first 16 bits of the address range are identical among all members of the subnet).
DNS Client
The DNS Client is used to resolve names of management servers within the operator’s management
domain (see Figure 59). This feature allows hostname configuration for NTP servers, Authorization
Servers, DHCP relay servers, and SNMP trap servers. Operators may choose to either enter in the FQDN
(Fully Qualified Domain Name) for the host name or to manually enter the IP addresses of the servers
.
Note
If an IP address that is set in the module is not the 169.254.x.x network address, then the
network operator must assign the computer a static IP address in the same subnet.

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Cambium Networks PMP 450 AP Specifications

General IconGeneral
BrandCambium Networks
ModelPMP 450 AP
CategoryWireless Access Point
LanguageEnglish

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