HP Routing Services -UX 11i v2 manual Defining Areas, Area Border Router Configuration Example

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Configuring gated

Configuring the OSPF Protocol

The following sections explain other statements defined for the OSPF protocol configuration.

Defining Areas

Each OSPF router is associated with one or more areas. The area statement identifies an OSPF area. The value is in the form of a dotted quad, or a number between 1 and 4294967295. To define an area, you must specify the following:

The addresses of the networks that make up the area.

The router interfaces used to communicate with the area.

The configuration of an area border router contains multiple area definitions; a different router interface is defined for each area.

Figure 3-4 shows an example of an area border router that is connected to area 0.0.0.1 through interface 193.2.1.33 and to area 0.0.0.2 through interface 193.2.1.17.

Figure 3-4

Area Border Router Configuration Example

 

 

 

 

 

 

 

 

 

 

Area 0.0.0.1

 

 

 

 

 

Area 0.0.0.2

 

 

 

to Network A

193.2.1.33

Area

Border

Router

193.2.1.17to Network B

The following is an example of the area definitions in the router’s /etc/gated.conf file:

ospf yes {

area 0.0.0.1 { interface 193.2.1.33 {

...

};

};

area 0.0.0.2 { interface 193.2.1.17 {

...

} ;

};

} ;

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Contents Manufacturing Part Number B2355-90777 August EditionCopyright Notice WarrantyGovernment License Trademark Notices Page Contents Contents Index Contents HP-UX Release Name and Release Identifier Intended AudienceDocument Organization Chapter Description What Is in This DocumentPublishing History Related Documentation HP-UX Internet Services Administrator’s GuideTypographical Conventions Mbone FAQBold HP Encourages Your FeedbackVersion of HP-UX that you are using Overview Overview Dvmrp Protocol Mrouted Routing DaemonMulticasting Overview Endpoint Dvmrp TunnelDvmrp Tunnel Multicast Class D IP Multicast Address Format IP Multicast AddressesMulticast Groups Mrouted Routing Daemon Advantages Gated Routing DaemonDeciding When to Use gated Routing Protocols RIP Ospf Comparison of RIP and Ospf ProtocolsRIP Ospf Gated Routing Daemon Gated Routing Daemon Chapter Configuring mrouted Configuring mrouted Configuration Commands How to Configure mroutedTunnel Multicast Network Example Configuration How to Configure mrouted How to Configure mrouted Starting mrouted Verifying mrouted Operation Displaying mrouted Routing Tables HUP Displaying mrouted Routing Tables Mrinfo Tool Multicast Routing Support ToolsMap-mbone Tool Netstat ToolMulticast Routing Support Tools Chapter Configuring gated Configuring gated Configuration Overview Configuring gated Protocol statements follow Converting the Configuration File from 3.0 to Cp /etc/gated.conf /etc/gated.conf.30 RIP Protocol Statement Configuring the RIP ProtocolDefault Range 1 Configuration Options Example of Simple RIP Configuration Simple RIP ConfigurationEnd Systems RoutersRIP Router Example of a Large RIP ConfigurationCluster Node Isolated Node Major RouterRoot Server Single NodeCluster or Root Server Node Major Router Controlling RIP TrafficConfiguring the RIP Protocol Configuring the Ospf Protocol Network Router Area Areas Defined in an Autonomous SystemArea Configuring the Ospf Protocol Planning Your Ospf Configuration Enabling Ospf Area To Network a 193.2.1.33 Border Router To Network B Defining AreasArea Border Router Configuration Example Network Configuration Example Networks StatementInterface Statement Configuring the Ospf Protocol Default None Router 193.2.1.35 Network Multicast Router Interface ExampleRouter Network 193.2.1.35 193.2.1.33 Internet 193.2.1.46 Range 0Non-Broadcast Router Interface Example Hellointerval value must be the same for all Ospf routers Configuring the Ospf Protocol Stub Areas Point-to-Point Router Interface ExampleRouter 193.2.1.1 193.2.1.2 193.2.1.20 193.2.1.17 193.2.1.18 193.2.1.19 Area RouterArea 15.13.115.156 Router a Router B Defining BackbonesAuthentication Authkey pepe Authkey travisCost LAN 1 LAN 2 CostAS External Routes AS Boundary Routers Only Default Configuring the Ospf Protocol Internal Router Non-Stub Area Sample Ospf ConfigurationArea Border Router Internal Router Stub Area Accessing the Ospf MIB RDP Server Configuring RDPRDP Client RDP Client ServerCustomizing Routes Specifying a Default RouterInstalling Static Routes Setting Interface States Specifying Tracing Options Option Effect FilesRoute Type Preference Default Preference Values of RoutesSpecifying Route Preference BGP Specifying Route Preference Export Statement Importing and Exporting RoutesImport Statement Examples of import and export Statements Flag Effect Command Line Options for gatedStarting gated 100 Verifying That gated Is RunningTracing gated Activity Troubleshooting gatedChecking for Syntax Errors in the Configuration File 102 Operational User Interface for gated gdcOspfmonitor Tool Gated Routing TableRipquery Tool 104 Common ProblemsProblem 1 gated does not act as expected Chapter 105 106 Problem 2 gated deletes routes from the routing tableProblem 3 gated adds routes that appear to be incorrect 108 Problem 4 gated does not add routes that you think it must109 Index110 111 112 113 TOS