HP 11i User Manual download pdf (Page 88)

Conﬁguring gated

Conﬁguring RDP

Chapter 388

conﬁgured on the physical interface. If advertisements are sent to a net

or subnet broadcast, only that network’s or subnet’s address is included

in the advertisement.

An example of the routerdiscovery server statement is as follows:

routerdiscovery server yes {

interface lan1 lan2

maxadvinterval 5 ;

address 193.2.1.17 193.2.1.33 193.2.1.46

broadcast

preference 50 ;

};

In the example, the server is enabled on the physical interfaces lan1 and

lan2, and the IP addresses 193.2.1.17, 193.2.1.33, and 193.2.1.46 are

included in all the router advertisements. Also, the addresses have a

preference of 50.

RDP Client

The RDP client runs on hosts, listening for router advertisements over

the all-hosts multicast address 224.0.0.1 (if it supports IP

multicasting) or on the physical interface’s broadcast address (if the host

does not support multicasting). When a host starts up or is reconﬁgured,

it sends certain router solicitations requesting advertisements. When it

sends the solicitations, it sends them to the all-routers multicast address

224.0.0.2 or to the interface’s broadcast address (if multicasting is not

supported).

When the RDP client receives a router advertisement, the host installs a

default route to each of the addresses listed in the advertisement. If the

advertisement has a preference of ineligible (that is, the addresses in

the advertisement are not eligible to be the default route for any hosts),

or if the addresses are not on an attached physical interface, the route is

marked as unusable but is still retained. If the preference is usable, then

that route is among the routes considered. The route with the highest

preference is used. If more than one route with the same preference is

received, the one with the lowest IP address is used. The default routes

are not exportable to other protocols.

If an RDP client receives a router advertisement with a zero lifetime

(that is, the addresses in the advertisement are no longer valid), the host

deletes all the routes with next-hop addresses learned from that router.

1 2 ... 83 84 85 86 87 88 89 90 91 92 93 ... 112 113

No comments

HP 11i User Manual Page 88