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The DHCP Tab

 

The DHCP Tab provides an overview of DHCP servers currently existing in ProVision, and links to the Resource pages for those servers. In ProVision, DHCP server configurations are tied into the Resource Manager system, so it is essential to associate servers with the proper parent Resource. 

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Server details and advanced options may be entered under this portion of the gadget.

 


Info
titleServer Command: Config Test

A note on the Server Command: Config Test option:  

This command is run after the newly-written DHCP Config file has been transferred to the server but before the server is restarted.  Due to the wide variety of DHCP install configurations that can arise on different systems, it is best if the Config Test option is as explicit as possible.  For example:

sudo /usr/sbin/dhcpd -t -cf /etc/dhcp/dhcpd.conf

This command explicitly requests the DHCP daemon start in test-only mode (-t) with a specific config file (-cf).  This config file should be the location supplied in the "DHCP Config File Path" section.

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Scan Server

Scan Server provides a "Scan Now" button, which scans the DHCP server and returns found IPs under DHCP Pools. 

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If the scan is unable to be completed, an error message will appear in the DHCP Management section.  


DHCP Pools

In this area, the admin can specify what DHCP Pools are linked to the DHCP server. This includes any host reservations as well as DHCP Pools as defined in the next section.

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For Existing Pools, additional filter terms may be included to further filter the IP search by Region or assigned Resource. 

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After entering your search terms, click "Search", and the pool list will filter to the results. 

 


Create a New DHCP Pool - Subnets

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Info
titleDHCP Pools and IP Rules

For DHCP Pools, ProVision automatically reserves the first and last address of the pool for Gateway and Broadcast addresses, respectively.

If an additional IP Rule is applied, the rule will begin with the second address in the block.

For example: if a DHCP Pool is created using 10.0.0.64/29 with an IP Rule of "Reserve First Three", the resulting pool range would be 10.0.0.68 through 10.0.0.70, as the first four as well as the final address would be reserved.

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Enter the name of the Pool / Subnet, and select the assignment criteria:

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Current Pushed Configuration does not reflect any un-pushed changes or failed pushes. 

 


Saving/Pushing DHCP Server Configurations

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DHCP Management integrates with ProVision's resource and permissions hierarchy, as well as the IP Management system.  Individual DHCP servers can be assigned via Resource Permissions  to different internal user groups, to be managed by only the appropriate parties.

 

Additional Information

For more detail on advanced DHCP topics and the DHCP API, see API Module - DHCP.