What's New in IPAM in Windows Server Technical Preview

更新时间: 2015年2月

应用到: Windows Server Technical Preview



This topic describes the IP Address Management (IPAM) functionality that is new or changed in Windows Server Technical Preview.

Important重要
Updates to IPAM are not yet available in Windows Server Technical Preview. Updates will be available in an upcoming release. See the following section for details.

IPAM provides highly customizable administrative and monitoring capabilities for the IP address infrastructure on a corporate network. You can monitor, audit, and manage servers running Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS).

IPAM offers enhanced support in the following areas:

 

Feature/Functionality New or improved Description

Enhanced IP address management

Improved

IPAM capabilities are improved for scenarios such as handling IPv4 /32 and IPv6 /128 subnets and finding free IP address subnets and ranges in an IP address block.

Enhanced DNS service management

New

IPAM supports DNS resource record, conditional forwarder, and DNS zone management for both domain-joined Active Directory-integrated and file-backed DNS servers.

Integrated DNS, DHCP, and IP address (DDI) management

Improved

Several new experiences and integrated lifecycle management operations are enabled, such as visualizing all DNS resource records that pertain to an IP address, automated inventory of IP addresses based on DNS resource records, and IP address lifecycle management for both DNS and DHCP operations.

The following features improve the IPAM address management capabilities.

IPAM in Windows Server Technical Preview now supports /31, /32, and /128 subnets. For example, a two address subnet (/31 IPv4) may be required for a point-to-point link between switches. Also, some switches may require single loopback addresses (/32 for IPv4, /128 for IPv6).

  • Find-IpamFreeSubnet

    This new Windows PowerShell cmdlet returns subnets available for allocation, given an IP block, prefix length, and number of requested subnets. If the number of available subnets is less than the number of requested subnets, the available subnets are returned with a warning indicating that the number available is less than the number requested.

    note注意
    This function does not actually allocate the subnets, it only reports their availability. However, the cmdlet output can be piped to Add-IpamSubnet Windows PowerShell cmdlet to create the subnet.



    For more information, see Find-IpamFreeSubnet (coming soon)



  • Find-IpamFreeRange

This new Windows PowerShell cmdlet returns available IP address ranges given an IP subnet, the number of address needed in the range, and the number of ranges requested. It searches for a continuous series of unallocated IP addresses that match the number of requested addresses. The process is repeated until the requested number of ranges is found, or until there are no more available address ranges available.

note注意
This function does not actually allocate the ranges, it only reports their availability. However, the cmdlet output can be piped to Add-IpamRange Windows PowerShell cmdlet to create the range.

For more information, see Find-IpamFreeRange (coming soon)

IPAM in Windows Server Technical Preview now supports discovery of file-based, domain-joined DNS servers in an Active Directory forest in which IPAM is running.

Additionally, the following DNS functions have been added:

  • DNS zones and resource records collection (other than those pertaining to DNSSEC) from DNS servers running Windows Server 2008 or later.

  • Configure (create, modify, and delete) properties and operations on all types of Resource Records (other than those pertaining to DNSSEC).

  • Configure (create, modify, delete) properties and operations on all types of DNS zones including Primary Secondary, and Stub zones).

  • Triggered tasks on secondary and stub zones, regardless if they are forward or reverse lookup zones. For example, tasks such as Transfer from Master or Transfer new copy of zone from Master.

  • Role based access control for the supported DNS configuration (DNS records and DNS zones).

  • Conditional forwarders collection and configuration (create, delete, edit).

When you view an IP address in the IP Address Inventory, you have the option in the Details View to see all the DNS resource records associated with the IP address.

As part DNS resource record collection, IPAM collects the PTR records for the DNS reverse look-up zones. For all the reverse lookup zones which are mapped to any IP address range, IPAM creates the IP address records for all the PTR records belonging to that zone in the corresponding mapped IP address range. If the IP address already exists, the PTR record is simply associated with that IP address. The IP addresses are not automatically created if the reverse lookup zone is not mapped to any IP address range.

When a PTR record is created in a reverse lookup zone through IPAM, the IP address inventory is updated in the same way as described above. During subsequent collection, since the IP address will already exist in the system, the PTR record will be simply mapped with that IP address.

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