HP Routing Services -UX 11i v2 manual Conﬁguring RDP, RDP Server

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Conﬁguring gated

Conﬁguring RDP

Conﬁguring RDP

You can use Router Discovery Protocol (RDP), a standard protocol, to inform hosts of the presence of routers to which they can send packets. You can also use RDP instead of host wiretapping routing protocols (for example, RIP). It is used instead of, or in addition to, having statically conﬁgured default routes in hosts.

RDP consists of two portions: the server portion, which runs on routers, and the client portion, which runs on hosts. gated treats these portions as separate protocols; therefore, you can enable only one of them at a time. These portions are described in detail in the subsequent sections.

For a description of the RDP conﬁguration statements, type man 4 gated.conf at the HP-UX prompt.

RDP Server

The RDP server runs on routers, and announces the routers’ existence to hosts periodically by multicasting or broadcasting a router advertisement. The advertisement is sent over an RDP server enabled physical interface. Each router advertisement contains a list of all addresses on a physical interface and their preference for being used as a default router. You can conﬁgure the length of time (the lifetime) for which addresses must remain on the list.

At ﬁrst, router advertisements occur every few seconds, and then, they start occurring few minutes. You can conﬁgure the minimum and maximum intervals for router advertisements to occur. Also, a host can send a router solicitation, requesting an advertisement. The router responds with a unicast router advertisement unless a multicast or broadcast advertisement is due to occur.

On hosts that support IP multicasting, router advertisements are sent by default to the all-hosts mulicast address 224.0.0.1. You can also conﬁguration RDP to use broadcasting to send router advertisements. This is useful when a particular host does not support IP multicasting, or when one or more hosts on an attached network do not support IP multicasting. If router advertisements are sent to the all-hosts multicast address, or if an interface is conﬁgured for the limited-broadcast address 255.255.255.255, the advertisements contain all the IP addresses

Chapter 3

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Contents Manufacturing Part Number B2355-90777 August EditionWarranty Government LicenseCopyright Notice Trademark Notices Page Contents Contents Index Contents HP-UX Release Name and Release Identiﬁer Intended AudienceWhat Is in This Document Publishing HistoryDocument Organization Chapter Description 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 Mrouted Routing Daemon Multicasting OverviewDvmrp Protocol Dvmrp Tunnel Dvmrp Tunnel MulticastEndpoint 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 Netstat Tool Multicast Routing Support ToolsMrinfo Tool Map-mbone 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 Routers Simple RIP ConﬁgurationExample of Simple RIP Conﬁguration End SystemsRIP Router Example of a Large RIP ConﬁgurationSingle Node Major RouterCluster Node Isolated Node Root ServerCluster or Root Server Node Major Router Controlling RIP TrafﬁcConﬁguring the RIP Protocol Conﬁguring the Ospf Protocol Areas Deﬁned in an Autonomous System AreaNetwork Router Area Conﬁguring the Ospf Protocol Planning Your Ospf Conﬁguration Enabling Ospf Deﬁning Areas Area Border Router Conﬁguration ExampleArea To Network a 193.2.1.33 Border Router To Network B Network Conﬁguration Example Networks StatementInterface Statement Conﬁguring the Ospf Protocol Default None Router 193.2.1.35 Network Multicast Router Interface ExampleRange 0 Non-Broadcast Router Interface ExampleRouter Network 193.2.1.35 193.2.1.33 Internet 193.2.1.46 Hellointerval value must be the same for all Ospf routers Conﬁguring the Ospf Protocol Point-to-Point Router Interface Example Router 193.2.1.1 193.2.1.2Stub Areas 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 ServerSpecifying a Default Router Installing Static RoutesCustomizing Routes Setting Interface States Specifying Tracing Options Option Effect FilesDefault Preference Values of Routes Specifying Route PreferenceRoute Type Preference BGP Specifying Route Preference Importing and Exporting Routes Import StatementExport Statement Examples of import and export Statements Command Line Options for gated Starting gatedFlag Effect 100 Verifying That gated Is RunningTroubleshooting gated Checking for Syntax Errors in the Conﬁguration FileTracing gated Activity 102 Operational User Interface for gated gdcGated Routing Table Ripquery ToolOspfmonitor Tool Common Problems Problem 1 gated does not act as expected104 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