Cradlepoint COR IBR350 Manual page 39

Active Leases: A list of devices that have been provided DHCP leases. The DHCP server automatically assigns these leases. This list will not
include any devices that have static IP addresses on the network. Select a device and click Reserve to add the device and its IP address to the
list of Reservations.
Reservations: This is a list of devices with reserved IP addresses. This reservation is almost the same as when a device has a static IP address
except that the device must still request an IP address from the router. The router will provide the device the same IP address every time. DHCP
reservations are helpful for server computers on the local network that are hosting applications such as Web and FTP. Servers on your network
should either use a static IP address or a reservation.
While you have the option to manually input the information to reserve an IP address (Hostname, Hardware Addr, IP Addr), it is much simpler
to select a device under the Active Leases section and click "Reserve." The selected device's information will automatically be added under
Reservations.
DNS
DNS, or Domain Name System, is a naming system that translates between domain names (www.cradlepoint.com, for example) and Internet IP
addresses (206.207.82.197). A DNS server acts as an Internet phone book, translating between names that make sense to people and the more
complex numerical identifiers. The DNS page for the device has these distinct functions:
• DNS Settings: By default your router is set to automatically acquire DNS servers through your Internet provider (Automatic). DNS Settings
allows you to specify DNS servers of your choosing instead (Static).
• Dynamic DNS Configuration: Allows you to host a server (Web, FTP, etc.)
(www.example.com) with your dynamically assigned IP address.
• Known Hosts Configuration: Allows you to map a name (printer, scanner, laptop, etc.) to an IP address of a device on the network.
Figure 51: Active DHCP Leases
Figure 52: Reserved IP Addresses
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using a domain name that you have purchased