The Networks tab on the IPAM page provides a comprehensive overview of the IP address space accessible to you. By default, all networks are displayed in the list, but you can use the filters in the left sidebar to filter by IP ranges, DHCP scopes, and containers. The list displays how IP addresses are organized into named subnets and provides important details, such as how much of the address space is used and backup plans for subnet failures. You can also view information about the selected network in the Inspector on the right side of the screen.
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Use the buttons in the upper right corner of the list to switch between a flat and a tree view.
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The star button adds the selected network to a list of favorites. You view your favorites by selecting Favorites in the left sidebar.
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When a network has no subranges, its utilization is displayed in the Networks list.
The left sidebar offers several additional options for filtering and organizing the networks: Menu, Folders, and DHCP services.
To narrow down the results in the list, use the quick filter. When using the tree view with an active filter, parent
networks that do not match the search criteria will be grayed out, while the
matching results are highlighted. For example, in the image below, we searched for
the string 10.7:
Viewing cloud networks
To view only your cloud networks, open the Cloud networks tab of the IPAM page.
The left sidebar displays your cloud Accounts, which are also displayed in the Account column of the data grid. To filter the data grid so that only cloud networks on a specific account are displayed, select the account in the sidebar.
When you select a network in the data grid, the Inspector displays its Properties, such as Region. Properties depend, however, on the type of service.
- Meraki networks display the network name.
- AWS networks also display the Region.
- Azure networks display the Region and the Azure Resource group, that is, the container for Azure resources like web applications, databases, and storage accounts.
To view the IP address ranges on a network, use the Action or the ellipses in the row to select View ranges. This takes you to the IP addresses data grid, which is filtered for the selected network.
Viewing IP addresses within networks
To view a list of IP addresses within a specific network, double-click the network or use the Action menu to select Open network. This opens the network in the list, where you can view and edit the properties of individual IP addresses. You can filter the list to display only the IP addresses you need.
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The PTR status column displays the status of the Address (A) record and Pointer (PTR) record mappings. Fields in this column can have one of three values:
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Empty: The status is empty if there are no DNS records for the host and/or if a PTR record exists in which the domain in the data section of the PTR record is not managed by the system.
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OK: If there is a match between the A and the corresponding PTR record(s), the status is listed as OK.
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Verify: There isn’t a match between the A and the PTR records for the host. Common reasons for this include:
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An A record exists, but the PTR record is missing.
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A PTR record exists, but the A record is missing.
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The data section in the PTR record does not correspond to the name of the A record.
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On the Action menu, you can use the Find next free address option to select the next available IP address within the range. Alternatively, select Find random free address to randomly select an available IP address.
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Viewing DHCPv6 scopes: Unlike DHCPv4 scopes, which display all addresses within a scope, a DHCPv6 scope only shows addresses that are currently in use or have been recently used. At the bottom of the list, the number of active IP addresses is displayed. An IP address with the status free indicates that it was recently used. To access more information about an address, use the ellipses in the row to select View History for that address.
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Filtering the list by dynamic or static allocation: You can filter the list to display to exclusively display either dynamic or static IP addresses within a DHCP scope using the Allocation section on the left sidebar. Applicable addresses will be displayed depending on related pools and exclusions.
Understanding IP address states
The State column in the IP addresses list displays the current state of each address, indicating whether an address is free, assigned, or in another state. You can use the State section in the left sidebar to filter the list.
The following states indicate the IP address usage:
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Free: IP addresses that are unassigned and available for use.
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Assigned: IP addresses with a DHCP reservation or lease. Additionally, addresses are also considered assigned if they have a corresponding DNS record, a set custom property, or are currently undergoing discovery and ping tests. These settings can be configured in the General section of the System settings.Important: The rules defined in the system settings do not apply to DHCP pools. In these pools, an IP address is considered free if it is neither leased nor reserved, meaning the DHCP server is authorized to allocate it to clients or reserve it as needed.
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Claimed: IP addresses that have been explicitly claimed using DDI orchestrator.
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Held: A free IP address that has been temporarily reserved (for up to ten minutes) for the user who requested it. During this timeframe, the user can complete the necessary actions, such as adding a DNS record. This reservation ensures that no other user can be assigned the same IP address within this timeframe, preventing duplicate allocations.
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Reserved: IP addresses with a DHCP reservation configured on them.
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Leased: IP addresses currently leased through DHCP, but not specifically claimed.