Cisco Cisco Prime Network Registrar 8.1 User Guide
Cisco Prime Network Registrar IPAM 8.1.1 User Guide
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This interaction not only maintains consistency between the planned and deployed network,
but allows proactive modification to the network to adjust for IP address shortages and
overages.
Cisco Prime Network Registrar IPAM is one product that is part of a complete and robust IP
Cisco Prime Network Registrar IPAM is one product that is part of a complete and robust IP
Address Management Suite.
Cisco Prime Network Registrar IPAM is a sophisticated IP
Address Block management tool that plans and deploys address blocks automatically.
1.2
Major Functions
Cisco Prime Network Registrar IPAM has the following general functions:
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Record information about subnets.
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Individual IP Address inventory and asset management.
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Centralized DNS (Domain Name System) configuration and management.
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Centralized DHCP configuration and management.
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Updates DNS Dynamically for DHCP clients and for immediate changes to the IP
Address Inventory.
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Captures address utilization and tracks it over time by the periodic and recurring
retrieval of DHCP information, enabling trending and regression analysis to
extrapolate when an IP address block will be exhausted.
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Creation of unique administrators that only allow access to those parts of the system
authorized for that individual.
1.2.1 Record Information About Subnets
The basic building block of modern IP networks is the subnet. Yet, how are companies
The basic building block of modern IP networks is the subnet. Yet, how are companies
tracking information about those subnets? What are all the IP addresses eligible to be a
“default gateway” for hosts on that subnet? What is the proper subnet mask for a subnet? It
is not surprising that many companies rely on routing tables to obtain this information, or at
least to use them to verify the accuracy of manually maintained information.
IP Addressing rules, such as verifying and enforcing bit-boundary rules when defining subnets
IP Addressing rules, such as verifying and enforcing bit-boundary rules when defining subnets
are standard in Cisco Prime Network Registrar IPAM. Classless Inter-Domain Routing
(CIDR) and Variable Length Subnet Mask (VLSM) are fully supported.
In keeping with the dynamics of growing networks, many organizations have had to resort to
In keeping with the dynamics of growing networks, many organizations have had to resort to
having duplicate IP network numbers. Mergers have often forced IT departments into this
practice. Cisco Prime Network Registrar IPAM can easily handle this situation, helping
companies keep these duplicate iterations of address space separate and distinct.
Before individual IP addresses can be recorded and managed, subnets must be declared.
Before individual IP addresses can be recorded and managed, subnets must be declared.
When a subnet is declared in Cisco Prime Network Registrar IPAM, it is tagged as either an
IPv4 subnet or an IPv6 subnet. Once declared, that subnet is supported in its native form,