Migrating IP addresses

IPAM can help you manage IP addresses in a network. IPAM might be used to track utilization of IP addresses for a given site to ensure that enough addresses exist for clients at that site.IPAM defines IP address ranges as groups of contiguous IP addresses, and IP address blocks as groupings of IP address ranges.
When migrating IP addresses to be managed by IPAM, the addresses can be entered manually by address range, address block, and individually by address. You can also import IP addresses into IPAM with a CSV-formatted file. Figure 2-17 shows the Add Or Edit IPv4 Address Range dialog box.

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FIGURE 2-17 Adding and editing an IP address range in IPAM.

The Managed By Service drop-down list is helpful for migration planning. With this dialog
box you can select how the address block or range is now being managed from choices like
IPAM (as shown), a non-Microsoft DHCP solution, Microsoft Virtual Machine Manager (VMM),
or another method. Choosing this correctly then enables you to import the IP address space
within IPAM but still have address assignment done using the current method. When ready,
the IP address can be moved under IPAM management as appropriate.