Cisco Systems OL-6240-02 manual Enabling Bootp for Scopes, 22-2

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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 Registrar DHCP server also supports a configuration parameter with which you can configure the policy options and determine which of the file, sname, or siaddr values you want returned to the BOOTP device.

Network Registrar supports an analogous configuration parameter with which you can configure the options and file, sname, or siaddr values you want returned to the DHCP client. This is in addition to any options requested by the DHCP clients in the dhcp-parameter-requestoption in the DHCP request. Thus, you can configure both the BOOTP and DHCP response packets appropriately for your devices.

Step 1 Decide which values you want for the BOOTP attributes:

•file—Name of the boot file

•siaddr—Server’s IP address

•sname—Optional server host name

Step 2 Decide the list of options and their values that you want returned to the BOOTP client. Step 3 Set these values in the policy you want associated with the BOOTP request:

•Attributes—Packet-siaddr,packet-file-name,packet-server-name to send to the BOOTP client.

•Option values, such as the server addresses and domain name to return to the BOOTP client.

•List of fields and options you want returned to the BOOTP client.

Step 4 Enable the associated scope or scopes for BOOTP processing.

Step 5 Enable dynamic BOOTP processing if you want to have this scope provide an address for any BOOTP client that requests one. If you do not enable dynamic BOOTP, you must make reservations for each BOOTP client for which you want this scope to provide an address.

Enabling BOOTP for Scopes

You can enable BOOTP processing for a scope. Set certain attributes and BOOTP reply options for a created policy in the local cluster Web UI, or use policy name create and policy name set in the CLI, to configure BOOTP. Set the policy attributes and options as a comma-separated list. The attributes are entities to use in a client’s boot process:

•packet-siaddr—IP address of the next server

•packet-file-name—Name of the boot file

•packet-server-name—Host name of the server

The server looks through the policy hierarchy for the first instances of these attribute values.

In the CLI, policy name setOption requires spaces (not equal signs) before values. Also, enable BOOTP and dynamic BOOTP, if desired, and ensure that the DHCP server updates the DNS server with BOOTP requests. The options are:

•Set the option dhcp-lease-time.

•Enable the dynamic-bootpattribute.

•Enable the update-dns-for-bootpattribute.

•Enable the update-dns-for-bootpattribute.

Cisco CNS Network Registrar User’s Guide

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OL-6240-02

 

 

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Contents 22-1 Configuring BootpAbout Bootp Enabling Bootp for Scopes 22-2Bootp Relay Moving or Decommissioning Bootp ClientsUsing Dynamic Bootp Setting Advanced Dhcp Server ParametersAdvanced Parameter Action Description 22-422-5 Deferring Lease Extensions 22-6Integrating Windows System Management Servers 22-7Using Extensions to Affect Dhcp Server Behavior 22-8Unix 22-9Tuning the Dhcp Server 22-10Dhcp set activity-summary-interval 22-11Configuring Virtual Private Networks Using Dhcp 22-12Typical Virtual Private Networks 22-13Creating Virtual Private Networks 22-14Then 22-15VPN Usage 22-16Configuring Dhcp Subnet Allocation 22-1722-18 22-19 Setting Dhcp ForwardingVPN and Subnet Allocation Tuning Parameters 22-20

OL-6240-02 specifications

Cisco Systems OL-6240-02 is a highly regarded certification exam that delves into the realm of enterprise networking, particularly focusing on the Cisco Certified Network Professional (CCNP) Routing and Switching track. This particular exam serves as a critical test for network professionals aiming to validate their skills and knowledge in advanced routing technologies and network design.

One of the main features of OL-6240-02 is its emphasis on in-depth understanding of IP routing principles. Candidates are expected to demonstrate proficiency in configuring, maintaining, and troubleshooting complex routing protocols like OSPF (Open Shortest Path First), EIGRP (Enhanced Interior Gateway Routing Protocol), and BGP (Border Gateway Protocol). This includes comprehending routing algorithms, path selection, and the implementation of route redistribution, which are essential for optimizing network performance.

The exam also covers the characteristics of network security and infrastructure, where candidates must exhibit knowledge of implementing security protocols and best practices to safeguard network communications. This includes configuring virtual private networks (VPNs), utilizing access control lists (ACLs), and applying encryption techniques to secure data in transit.

Another crucial technology tested in OL-6240-02 is Quality of Service (QoS). Professionals must be adept at configuring QoS mechanisms to prioritize traffic, ensuring that critical applications receive the necessary bandwidth and latency requirements. This is increasingly important as businesses rely on a multitude of applications that have varying performance needs.

Cisco's emphasis on network automation and programmability is also a focal point of this certification. Candidates are expected to be familiar with using Cisco's software-defined networking (SDN) solutions and automation tools, which are essential for modern network management. This involves understanding how to leverage APIs and modeling tools to streamline network operations and enhance efficiency.

To succeed in OL-6240-02, candidates should possess a solid foundation in network fundamentals and have hands-on experience with Cisco devices. The certification not only validates expertise but also prepares professionals for real-world challenges in designing, implementing, and troubleshooting enterprise networks. Overall, OL-6240-02 is a stepping stone for network professionals seeking higher-level certifications and career advancements in the ever-evolving field of networking.
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