Troubleshooting gated | HP Routing Services -UX 11i v2 instruction

Conﬁguring gated

Troubleshooting gated

Troubleshooting gated

This section describes the following techniques for troubleshooting gated and some common problems encountered with gated operation:

•“Checking for Syntax Errors in the Conﬁguration File” on page 101

•“Tracing gated Activity” on page 101

•“Operational User Interface for gated – gdc” on page 102

•“The gated Routing Table” on page 103

•“The ripquery Tool” on page 103

•“The ospf_monitor Tool” on page 103

•“Common Problems” on page 104

Checking for Syntax Errors in the Conﬁguration File

After creating or modifying a gated conﬁguration ﬁle, you must start gated from the command line with the -Coption. This option parses the the conﬁguration ﬁle for syntax errors.

Tracing gated Activity

gated prints information about its activity in the form of tracing output. This information includes routes that gated reads, adds, and deletes from the kernel routing table, as well as packets sent and received.

You can specify tracing either with the gated -tcommand-line option or with the traceoptions statement in the /etc/gated.conf ﬁle. Using any of the following combinations, you can determine where the tracing output is printed and whether tracing is performed:

•If you specify trace options and a trace ﬁle, tracing output is printed to the log ﬁle.

•If you specify trace options but do not specify a trace ﬁle, tracing output is printed on the display where gated was started.

•If you specify a trace ﬁle but do not specify any trace options, no tracing takes place.

Chapter 3

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HP Routing Services -UX 11i v2 manual Troubleshooting gated, Checking for Syntax Errors in the Conﬁguration File

Contents

Manufacturing Part Number B2355-90777 August Edition Copyright Notice WarrantyGovernment License Trademark Notices Page Contents Contents Index Contents HP-UX Release Name and Release Identiﬁer Intended Audience Document Organization Chapter Description What Is in This DocumentPublishing History Related Documentation HP-UX Internet Services Administrator’s Guide Typographical Conventions Mbone FAQ Bold HP Encourages Your Feedback Version 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 Addresses Multicast Groups Mrouted Routing Daemon Advantages Gated Routing Daemon Deciding When to Use gated Routing Protocols RIP Ospf Comparison of RIP and Ospf Protocols RIP Ospf Gated Routing Daemon Gated Routing Daemon Chapter Conﬁguring mrouted Conﬁguring mrouted Conﬁguration Commands How to Conﬁgure mrouted Tunnel 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 Tool Multicast 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 Protocol Default Range 1 Conﬁguration Options Example of Simple RIP Conﬁguration Simple RIP ConﬁgurationEnd Systems Routers RIP Router Example of a Large RIP Conﬁguration Cluster Node Isolated Node Major RouterRoot Server Single Node Cluster or Root Server Node Major Router Controlling RIP Trafﬁc Conﬁguring 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 Statement Interface Statement Conﬁguring the Ospf Protocol Default None Router 193.2.1.35 Network Multicast Router Interface Example Router 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 Router Area 15.13.115.156 Router a Router B Deﬁning Backbones Authentication Authkey pepe Authkey travis Cost LAN 1 LAN 2 Cost AS External Routes AS Boundary Routers Only Default Conﬁguring the Ospf Protocol Internal Router Non-Stub Area Sample Ospf Conﬁguration Area Border Router Internal Router Stub Area Accessing the Ospf MIB RDP Server Conﬁguring RDP RDP Client RDP Client Server Customizing Routes Specifying a Default RouterInstalling Static Routes Setting Interface States Specifying Tracing Options Option Effect Files Route 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 Running Tracing gated Activity Troubleshooting gatedChecking for Syntax Errors in the Conﬁguration File 102 Operational User Interface for gated gdc Ospfmonitor 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 table Problem 3 gated adds routes that appear to be incorrect 108 Problem 4 gated does not add routes that you think it must 109 Index 110 111 112 113 TOS