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Contents         


 About This Guide


 Audience viii

 PortMaster Documentation viii

 Additional References ix

 RFCs ix

 Books x

 Document Conventions xi

 Document Advisories xii

 Contacting Lucent Technical Support xii

 For Europe, Middle East, and Africa (EMEA) xiii

 For North America, Latin America, and the Asia Pacific Region xiii

 Subscribing to PortMaster Mailing Lists xiii

1. Routing Overview


 Understanding Routing 1-1

 Hosts 1-1

 Routes 1-2

 Address Resolution 1-2

 Static Routing 1-3

 Default Gateway 1-3

 Dynamic Routing 1-4

 Variable-Length Subnet Masks 1-4

 Routing with a PortMaster 1-8

 Routing Table 1-8

 Routing Protocols 1-10

 Comparing Routing Protocols 1-10

 RIP 1-13

 OSPF 1-14

 BGP-4 1-18

 Rules of Route Precedence 1-22

 Avoiding Routing Loops 1-23

2. Configuring RIP Routing


 Understanding RIP 2-1

 RIP Configuration Examples 2-2

 Routing with Subnets 2-2

 Using Proxy ARP 2-8

 Configuring a Simple Dial-In Connection 2-9

3. Configuring OSPF Routing


 OSPF Configuration Tasks 3-1

 Enabling OSPF on the PortMaster 3-2

 Setting Router Priority 3-2

 Adding OSPF Areas 3-2

 Setting OSPF Area Ranges 3-3

 Setting OSPF on the Interfaces 3-3

 Enabling OSPF Configuration Changes 3-5

 Additional OSPF Settings 3-5

 Setting an Area Password 3-5

 Setting MD5 Authentication 3-5

 Setting a Router ID 3-6

 Propagating External Routes 3-6

 Propagating RIP Routing 3-7

 Defining Propagation Filters 3-7

 Defining Propagation Rules 3-7

 Modifying or Deleting Propagation Rules 3-8

 Applying Interface-Specific Propagation Route Filters 3-8

 Setting an NSSA 3-10

 OSPF Handling in a Frame Relay Network 3-10

 Injecting the Default Route into a Stub Area or NSSA 3-11

 Displaying OSPF Settings 3-11

 OSPF Configuration Examples 3-12

 Propagating OSPF over a Single WAN Link 3-12

 Nonbroadcast Multiaccess 3-18

 Nonbroadcast Multiaccess Multiple Areas 3-28

 Fully Meshed Frame Relay 3-41

 Point-to-Multipoint Partially Meshed Frame Relay 3-53

4. Configuring BGP Routing


 BGP Configuration Tasks 4-1

 Simple BGP Configuration 4-2

 Advanced BGP Configuration 4-2

 Configuring BGP on the PortMaster 4-3

 Enabling BGP Routing 4-4

 Setting the BGP Identifier 4-4

 Setting the Autonomous System Identifier 4-4

 Defining Confederations 4-5

 Defining the Route Reflector Cluster ID 4-5

 Propagating Routing Protocols 4-6

 Working with BGP Policies 4-8

 Defining BGP Peers 4-14

 Advertising with Summarization 4-16

 Creating BGP Communities 4-21

 Setting IGP Lockstep 4-21

 Setting the Connection Retry Interval 4-22

 Setting the Keepalive Timer Interval 4-22

 Setting the Hold Time Interval 4-22

 Saving and Resetting BGP Routing 4-23

 Displaying BGP Settings 4-23

 Debugging BGP 4-24

 BGP Configuration Examples 4-25

 Easy-Multihome-Example 1 4-26

 Easy-Multihome-Example 2 4-30

 Easy-Multihome-Example 3 4-39

 Route Reflectors Example 4-47

 Confederations Example 4-54

A. Troubleshooting


 Troubleshooting Tools A-1

 Ping A-1

 Ptrace A-2

 Traceroute A-3

 Case Studies A-4

 Host Routing versus Network Routing A-4

 Configuring the Gateway A-7

 Configuring Subnets A-9

 Configuring Unnumbered Interfaces A-12

 Propagating OSPF over a WAN Link A-15

 Glossary

 Index



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