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 this information as a debugging aid. Maintaining this time robustly requires a write to the database on every client interaction. The last-transaction-time- granularity attribute is the one to set. (See the attribute description in Table 22-1 on page 22-4.) Because it is primarily a debugging aid, the value need not be entirely accurate. Furthermore, because the in-memory copy is always accurate, you can use export leases -serverto display the current information, even if the data is not up to date in the database.

Integrating Windows System Management Servers

You can have the DHCP server interact with the Microsoft System Management Server (SMS) so that SMS is current with DHCP changes. Normally, SMS pulls updated data through a DHCPDISCOVER request from the server about any new clients that joined the network. Network Registrar, however, pushes these updates to SMS when you use dhcp updateSms. Before you do, verify that:

•SMS client installation and initialization step is complete.

•Network Registrar Server Agent is set to run under a login account with sufficient privileges.

•SMS site ID is correct and matches that of the SMS server.

These steps describe how to integrate Windows SMS into Network Registrar.

Step 1 Install the Microsoft BackOffice 4.5 Resource Kit on the same machine as the Network Registrar DHCP server. Follow the installation instructions and choose the default settings.

Step 2 After the installation, modify the User Variable search path on the Environment tab of the System control panel to:

\program files\ResourceKit\SMS\diagnose

Step 3 If the DHCP and SMS servers are on different machines, install the SMS client on the same machine as the DHCP server. The SMS library has the necessary API calls to communicate with the SMS server. You must assign the correct site code from the DHCP server machine. In your Network Neighborhood, go to the path \\SMS-servername\SMSLOGON\x86.bin\00000409\smsman.exe.

Run the program and follow the instructions, using the default settings. The program creates two icons that you can use later from the control panel, marked SMS and Remote Control.

Step 4 Stop and then restart the Network Registrar server agent under a trusted domain account with sufficient privileges. Both the DHCP and SMS servers must be aware of this account. Use this short procedure:

a.Stop the local cluster server agent process.

b.Configure the account under which the Network Registrar services run. Create an account name that is a member of both the trusted SMS site server group and a member of the DHCP server machine’s administrator group, with the corresponding password.

c.Restart the local cluster server agent process.

Step 5 Use dhcp set sms-library-path(or the sms-library-pathattribute under the Microsoft Systems Management Server category on the Edit DHCP Server page of the local cluster Web UI) to configure the DHCP server to push lease information to SMS. Include the full path to the SMSRsGen.dll. If you omit a value, the path defaults to the internal server default location of this file. For example:

nrcmd> dhcp set sms-library-path /conf/dll

Cisco CNS Network Registrar User’s Guide

 

OL-6240-02

22-7

 

 

 

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Cisco Systems OL-6240-02 manual Integrating Windows System Management Servers, 22-7
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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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