IPv4 Lease Table

Using DHCP, a client no longer owns an IP Internet Protocol address, but rather leases it from the DHCP Dynamic Host Configuration Protocol server, which gives permission for a client to use the address for a period of time.

The lease table on the Network Services > DHCP > IPv4 Lease Table tab shows the current leases issued by the DHCP server, including information about the start date and the date when the lease will expire.

Add Static Mapping to New Host Definition

You can use an existing lease as template for a static MAC Media Access Control/IP mapping with a host to be defined. Do the following:

1. For the desired lease, click the button Make Static in the Make static column.

   The dialog window Make Static opens.

2. Make the following settings:

   Action: Select Create a new host.

   Name: Enter a descriptive name for the new host.

   DHCP server: Select the DHCP server to be used for static mapping. The corresponding DHCP range is displayed below the drop-down list.

   IPv4 address: Change the IP address to an address outside the DHCP pool range.

   Note – When converting a lease to a static mapping you should change the IP address so that it is no longer inside the scope of the DHCP pool. However, if you change the IP address, the address used by the client will not change immediately, but only when it tries to renew its lease for the next time.

   DNS hostname: If you provide a DNS hostname, it will be used as static DNS entry of the host.

   Reverse DNS: Select the checkbox to enable the mapping of the host's IP address to its name. Note that although several names can map to the same IP address, one IP address can only ever map to one name.

   Comment (optional): Add a description or other information.

3. Click Save.

   Your settings will be saved.

You can find the new host with the static mapping on the Definitions & Users > Network Definitions tab.

Add Static Mapping to Existing Host Definition

You can use an existing lease as template for a new static MAC Media Access Control/IP mapping with an existing host definition. Do the following:

1. For the desired lease, click the Make Static button in the Make static column.

   The dialog window Make Static opens.

2. Make the following settings:

   Action: Select Use an existing host.

   Host: Add the host by clicking the Folder icon.

3. Click Save.

   Your settings will be saved.

You can find the host with the static mapping on the Definitions & Users > Network Definitions tab.