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User Guide for Cisco Prime Network Registrar - DNIP . NET

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Contents<br />

Dynamic Allocation of UDP Ports 18-8<br />

Setting Advanced Caching DNS Server Properties 18-9<br />

Setting Maximum Memory Cache Sizes 18-9<br />

Specifying <strong>Network</strong> Settings 18-10<br />

Flushing CDNS Cache 18-10<br />

Detecting and Preventing DNS Cache Poisoning 18-11<br />

DNS Cache Poisoning Attacks 18-11<br />

Handling DNS Cache Poisoning Attacks 18-11<br />

Handling Unresponsive Nameservers 18-12<br />

CHAPTER 19 Configuring High-Availability DNS Servers 19-1<br />

HA DNS Processing 19-1<br />

Configuring an HA DNS Server Pair from Main Server 19-3<br />

DNS Server Configuration <strong>for</strong> HA DNS 19-5<br />

Synchronizing HA DNS Zones 19-5<br />

HA DNS Configuration Synchronization 19-5<br />

Initial Setup Considerations 19-6<br />

Migration Procedure 19-6<br />

Pre-install <strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong> on the HA DNS backup server 19-6<br />

Pre-migration Steps <strong>for</strong> HA DNS Main Server 19-6<br />

Restart <strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong> on the HA DNS Main Server 19-7<br />

Copy <strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong> Database Files to HA DNS Backup Server 19-7<br />

Reconfigure <strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong> on the HA DNS Backup Server 19-8<br />

Configure <strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong> HA DNS on the HA DNS Main Server 19-8<br />

Reload the DNS Servers 19-9<br />

HA DNS Statistics 19-9<br />

PART 5<br />

Dynamic Host Administration<br />

CHAPTER 20 Introduction to Dynamic Host Configuration 20-1<br />

How DHCP Works 20-1<br />

Sample DHCP <strong>User</strong> 20-2<br />

Typical DHCP Administration 20-2<br />

Leases 20-3<br />

Scopes and Policies 20-3<br />

<strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong> DHCP Implementations 20-4<br />

DHCP and IPv6 20-4<br />

Virtual Private <strong>Network</strong>s 20-5<br />

xiv<br />

<strong>User</strong> <strong>Guide</strong> <strong>for</strong> <strong>Cisco</strong> <strong>Prime</strong> <strong>Network</strong> <strong>Registrar</strong>, 8.0<br />

OL-24395-01

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