Chapter 1 Cisco SDM Express
DHCP Server Configuration
address pool smaller, but you must enter an address in the same subnet as the address of the LAN interface, or Cisco SDM Express displays a message informing you that the address is invalid.
Ending IP Address Field
Cisco SDM Express enters the highest valid address in the IP address range in this field, based on the IP address and subnet mask that you gave the LAN interface. You can change this value to a lower address value if you want to make the DHCP address pool smaller, but you must enter an address in the same subnet as the address of the LAN interface, or Cisco SDM Express displays a message informing you that the address is invalid.
Domain Name Field
Visible after you have completed initial configuration. You can enter the domain name for your organization. An example of a domain name is cisco.com, but your domain name might end with a different suffix, such as .org or .net.
Import all DHCP option parameters to the DHCP server database Check Box
Visible after you have completed initial configuration. Check this option if you want to import DHCP option parameters to the DHCP server database and also send this information to DHCP clients on the LAN when they request IP addresses.
Primary Domain Name Server Field
Enter the IP address of the primary DNS server that the router will use. Your network administrator or service provider will provide you with the IP address.
The primary DNS server is the server that the router contacts first when attempting to resolve an IP address.
Secondary Domain Name Server Field
Enter the IP address of the secondary DNS server that the router will use, if one is available. Your network administrator or service provider will provide you with the IP address.
The secondary DNS server is the server that the router contacts if the primary server is not available.
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