Page 2 - Enabling BOOTP for Scopes
22-2 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Configuring BOOTP Every Network Registrar DHCP policy has attributes with which you can configure the information you want returned directly in the file , siaddr , or sname fields. The Network Registr...
Page 3 - Moving or Decommissioning BOOTP Clients; Using Dynamic BOOTP; BOOTP Relay; Defining Advanced Server Parameters; Setting Advanced DHCP Server Parameters
22-3 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Defining Advanced Server Parameters Moving or Decommissioning BOOTP Clients When you move or decommission a BOOTP client, you can re-use its lease. To decommission a BOOTP client, you must remove its ...
Page 6 - Deferring Lease Extensions
22-6 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Defining Advanced Server Parameters In the CLI, use dhcp show and dhcp get to show the current server parameters, then use dhcp set , dhcp unset , dhcp enable , and dhcp disable to change them (see Ta...
Page 7 - Integrating Windows System Management Servers
22-7 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Integrating Windows System Management Servers As a complication, the server also keeps track of the time when it last heard from the client. Known as the last transaction time, sites sometimes use thi...
Page 8 - Using Extensions to Affect DHCP Server Behavior
22-8 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Using Extensions to Affect DHCP Server Behavior When you install the Microsoft BackOffice Resource Kit, the system path is not updated to reflect the location of the SMS data link library (DLL). Use o...
Page 10 - Tuning the DHCP Server
22-10 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Tuning the DHCP Server • Windows: – For Tcl—\program files\Network Registrar\extensions\dhcp\tcl – C or C++—\program files\Network Registrar\extensions\dhcp\dex It is best to place these extensions i...
Page 12 - Configuring Virtual Private Networks and Subnet Allocation; Configuring Virtual Private Networks Using DHCP
22-12 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Configuring Virtual Private Networks and Subnet Allocation • Adjust the mcd-blobs-per-bulk-read attribute value to tune DHCP start and reload times. Generally, a higher mcd-blobs-per-bulk-read attrib...
Page 13 - Typical Virtual Private Networks
22-13 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Configuring Virtual Private Networks and Subnet Allocation • Querying subnet utilization (see the “Generating Subnet Utilization History Reports” section on page 8-13 ). • Querying lease history (see...
Page 14 - Creating Virtual Private Networks
22-14 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Configuring Virtual Private Networks and Subnet Allocation If the server-id-override suboption of the relay-agent-info option (82) exists, the DHCP server uses its value to compare to that of the dhc...
Page 16 - VPN Usage
22-16 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Configuring Virtual Private Networks and Subnet Allocation VPN Usage The VPN name is used to qualify many DHCP objects in Network Registrar, such as IP addresses (leases), scopes, and subnets. For ex...
Page 17 - Configuring DHCP Subnet Allocation
22-17 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Configuring Virtual Private Networks and Subnet Allocation In the CLI—To import leases, use import leases filename . Each lease entry in the file can include the VPN at the end of the line. If it is ...
Page 19 - VPN and Subnet Allocation Tuning Parameters; Setting DHCP Forwarding
22-19 Cisco CNS Network Registrar User’s Guide OL-6240-02 Chapter 22 Advanced DHCP Server Properties Setting DHCP Forwarding VPN and Subnet Allocation Tuning Parameters Consider these tuning parameters for VPNs and on-demand address pools. • Keep orphaned leases that have nonexistent VPNs—Network Re...