Shared Network {{ sharedNetwork.name }}

Multiple DHCP servers can share a shared network when they run in High Availability mode or when they are connected to a shared lease database. In this case, the servers typically have the same shared network configuration (i.e., the same subnets, DHCP options, and other DHCP-specific parameters). However, there are valid cases when the shared network configurations differ on individual servers. For example, interfaces used for subnet selection may have a different names.

The detailed address utilization statistics use the following naming conventions:

- total - the number of addresses in a shared network.
- assigned - the number of allocated leases including declined leases.
- used - the number of allocated leases excluding declined leases.
- declined - the number of declined leases.
- uncertain - optional statistics only presented when the number of declined leases is greater than assigned (see below).

There are rare cases when a Kea server can return inconsistent statistics, with the number of declined leases greater than assigned leases. It may happen when some of the DHCP clients decline already released or expired leases. These leases are not counted as assigned, but the declined statistics is affected. Stork deals with such cases by introducing the uncertain leases count. It holds an estimated number of leases for which it is unclear whether they are allocated, declined or free. This statistic is only computed and presented when the number of declined leases is greater than assigned.

The DHCP parameters can be specified at global and shared network levels. The list below contains all parameters configured for all servers owning the shared network, and at both configuration levels. An effective value is displayed next to a parameter name. You can expand a parameter by clicking the button to the left of the parameter name to view the values specified at the different levels for each server. The shared network-level value takes precedence over the global value.

No subnets configured.
No pools configured.
DHCP Options / {{ localSharedNetwork.appName }} All Servers