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Multi-server Management

Applies To: Windows Server 2012, Windows Server 2012 R2



This topic contains detailed information and procedures you can use to manage Microsoft DNS and DHCP servers with IPAM. To review best practices for multi-server management, see Monitor and manage.

IPAM provides the following options for managing Microsoft DNS and DHCP servers on the network:

Click the DNS and DHCP Servers node in the upper navigation pane to quickly view the status of managed DNS and DHCP services. Servers with IPv4 addresses are displayed by default. Use the lower navigation pane to display servers with IPv6 addresses, or to choose a specific IPv4 or IPv6 network. The Server Availability and Duration in Current State fields provide information about the health of DNS and DHCP services.

For example, if the DHCP Server service on a managed DHCP server is Paused or Stopped, this is displayed under Server Availability.

DHCP service

To immediately refresh the status of a server, right-click the server name, click Retrieve Server Data, wait for the ServerAvailability task to complete, and then refresh the console view.

To view when service status was most recently refreshed, view the Last Refreshed field in the display pane details view. You can also add this column to the upper display pane search view (see below). This column is not displayed by default.

If a server is not available due to network problems, it will display a status of Not Reachable for all services that the server provides.

Not reachable

If only some services are not reachable, for example due to permission or firewall settings, then only those services will be Not Reachable.

Click the DNS Zone Monitoring node in the upper navigation pane to view a list of all zones hosted by managed DNS servers. Forward lookup zones are displayed by default. To view reverse DNS zones, click IPv4 Reverse Lookup or IPv6 Reverse Lookup in the lower navigation pane. The health of reverse lookup zones is not displayed. The lower navigation pane also displays a nested list of forward DNS zones with their associated status icon.

The health of a forward DNS zone is displayed in the Zone Status column next to the Duration in Current State. The zone status is a summary of status for all DNS servers that host the zone. Click the Authoritative Servers tab in the Details View to view a list of authoritative servers.

When a DNS zone is paused, the status of the zone will remain as OK because the DNS server will continue to respond to DNS queries for a paused zone. However, if the DNS Server service on one or more DNS servers is stopped, paused or not responding for another reason, zones hosted by the DNS server will display a status of Error or Warning.

DNS Zone Status

An Error status displays as a red square, and indicates that none of the authoritative DNS servers for the zone are responding to DNS queries.

A Warning status displays as a yellow triangle, and indicates that some of the authoritative DNS servers for the zone are not responding to DNS queries.

Zone status will update periodically with information from scheduled data collection tasks. To update the status of a zone immediately, right-click the zone, click Reset Zone Status, click TASKS, click Retrieve Server Data, and then refresh the console view.

You can use the IP ADDRESS SPACE node in the upper navigation pane to synchronize DNS and DHCP data in IPAM with data on managed DNS and DHCP servers. The following methods are available:

  1. To import records from managed servers into the IPAM database, see Importing DHCP lease data from the network.

  2. To manually create records in the IPAM database that corresponds to existing data on managed servers, unmanaged servers, and other IP address infrastructure devices, see Add or edit IP address space.

  3. To use IP address data in IPAM to create records on managed servers, see Managing DHCP reservations and Managing DNS records.

To manage DHCP server properties, click DNS and DHCP Servers in the upper navigation pane. Choose DHCP or DNS and DHCP from the drop-down list next to Server Type, and choose Server properties from the drop-down list next to View. Select one or more DHCP servers in the list, choose IPv4 or IPv6 in the lower navigation pane, and then right-click the selected servers to access the following DHCP server management options:

  • Edit DHCP Server Properties configures the following options on one DHCP server or on multiple DHCP servers simultaneously:

    • DNS dynamic update settings and name protection options. These options can also be configured on the DNS tab in the DHCP console.

    • DNS dynamic update credentials used by the DHCP server to register names on DNS servers. This option can also be configured on the Advanced tab in the DHCP console.

    • Enable or disable DHCP audit logging. This option can also be configured on the General tab in the DHCP console.

  • Edit DHCP Server Options configures the following options on one DHCP server or on multiple DHCP servers simultaneously:

    • Vendor class

    • User class

    • Option

    • Value

    These options can also be configured by right-clicking Server Options under IPv4 or IPv6 in the DHCP console, and clicking Configure Options, and then clicking the Advanced tab.

  • Create DHCP Scope adds a new DHCP scope to a single DHCP server. This option is not available when multiple DHCP servers are selected. To duplicate a DHCP scope, see DHCP scope management.

  • Configure Predefined DHCP Options adds, edits, or deletes predefined options and values on one DHCP server or on multiple DHCP servers simultaneously. These options can also be configured by right-clicking IPv4 or IPv6 and then clicking Set Predefined Options in the DHCP console.

  • Launch MMC opens the DHCP console to configure a single managed DHCP server. This option is not available when multiple DHCP servers are selected.

  • Configure User Class creates, overwrites, or deletes DHCP user classes on one DHCP server or on multiple DHCP servers simultaneously. User classes can also be configured by right-clicking IPv4 or IPv6 and then clicking Define User Classes in the DHCP console.

  • Configure Vendor Class creates, overwrites, or deletes DHCP vendor classes on one DHCP server or on multiple DHCP servers simultaneously. Vendor classes can also be configured by right-clicking IPv4 or IPv6 and then clicking Define User Classes in the DHCP console

  • Retrieve Server Data runs the following IPAM data collection tasks immediately on the selected managed DHCP servers:

    • ServerConfiguration

    • ServiceMonitoring

    • ServerAvailability

    • Audit

To manage DHCP scope properties, click DHCP Scopes in the upper navigation pane. You can also choose DNS and DHCP Servers in the upper navigation pane and then choose DHCP from the drop-down list next to Server Type, and then choose Scope properties from the drop-down list next to View.

TipTip
IPv4 and IPv6 nodes in the lower navigation pane refer to IP addresses assigned to scopes if you are using the DHCP Scopes view. These nodes refer to interface addresses for managed DHCP servers if you are using the DNS and DHCP Servers view.

Select one or more scopes from the list, and then right-click the selected scopes to access the following DHCP scope management options:

  • Edit DHCP Scope configures the following options on one DHCP server or on multiple DHCP servers simultaneously.

    • General Properties:

      • Scope name

      • Description

      • Start IP address

      • End IP address

      • Subnet mask

      • Lease duration

      • Exclusion range

      If multiple scopes are selected, you can only configure the description and lease duration.

    • DNS Dynamic Updates:

      • Enable DNS dynamic updates

      • Enable name protection

      • Dynamically update DNS A and PTR records

      • Discard DNS A and PTR records when lease is deleted

      • Dynamically update DNS A and PTR records for DHCP clients that do not request updates

      If multiple scopes are selected, you can only enable or disable DNS dynamic updates.

    • DHCP Scope Options: Add, overwrite, find and replace, or delete vendor class and user class options and values.

      All DHCP scope options can be configured simultaneously for multiple scopes.

    • Advanced Properties:

      • Assign IP addresses dynamically to DHCP clients, BOOTP clients, or both

      • Lease duration for BOOTP clients

      • Subnet delay

      All advanced properties can be configured simultaneously for multiple scopes.

  • Duplicate DHCP Scope creates a new scope on a single DHCP server that is already configured with the same DNS dynamic update options, scope options, and advanced properties of the scope that is selected for duplication. The new scope is created on the same DHCP server. You are required to provide a start IP address, end IP address, and subnet mask. DHCP failover relationships are not duplicated.

    ImportantImportant
    The new DHCP scope will be active by default, even if the original scope was inactive.

  • Activate DHCP Scope activates the selected scopes on managed DHCP servers. All scopes that you select must be inactive to use this option.

  • Deactivate DHCP Scope deactivates the selected scopes on managed DHCP servers. All scopes that you select must be active to use this option.

  • Delete deletes the selected scopes on managed DHCP servers.

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