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- <FORM>
- <H2>Dynamic Routing Configuration</H2>
- <P>
- The kernel routing table is maintained by the <VAR>routed</VAR> daemon,
- which communicates with other <VAR>routed</VAR> daemons on the network
- using a variant of the Xerox NS Routing Information Protocol (RIP).
- These systems broadcast information about the networks to which they
- are connected; they also broadcast all the information that they
- learn from other daemons. Client systems listen to these broadcasts
- to set up their own routing tables.
- </P>
- <P>
- Use the Dynamic Routing Configuration form to set these parameters:
- </P>
- <P>
- <STRONG>Enable dynamic routing:</STRONG> This selection turns routing
- on and off for this system. Select <VAR>Yes</VAR> to turn on dynamic
- routing and <VAR>No</VAR> to turn it off. Typically, any system connected
- to a company intranet that contains more than one network should have
- dynamic routing turned on.
- </P>
- (Default value: Yes)
- <P>
- Note: This is identical to the <I>Enable dynamic routing</I> selection on
- the Gateway Configuration form. You can change the setting from either
- form (your selection is automatically applied to the Gateway Configuration
- form to update it).
- </P>
- <P>
- <STRONG>Offer default destination for unknown routes:</STRONG> This
- selection controls whether this system can route to any destination
- that is not broadcast. Often the Internet gateway system routes packets
- from the internal company intranet to the external Internet. If your
- system requires this ability, select <VAR>Yes</VAR> to turn on routing
- to external Internet locations; select <VAR>No</VAR> to turn it off.
- </P>
- (Default value: No)
- <P>
- <STRONG>Force router to supply network information:</STRONG> By default,
- systems with only one network interface do not broadcast routing information.
- Select <VAR>Yes</VAR> to override the default behavior so this system will
- send routing broadcasts.
- </P>
- (Default value: No)
- <P>
- <STRONG>Print all inbound and outbound packets to standard output
- device:</STRONG> This is a useful option for testing. If you select
- <VAR>Yes</VAR>, every routing information packet that this daemon hears
- on the network or that it sends will be printed. You should
- select <VAR>No</VAR> for normal operation.
- </P>
- (Default value: No)
- <P>
- <STRONG>Advertise host routes on the primary interface:</STRONG> For
- systems with multiple network interfaces, it is often useful to
- broadcast a false host route for a network address to other systems
- to reduce the likelihood of routing loops. This broadcasts information
- about all non-primary network interfaces to the network attached to
- the primary interface. For the same behavior on the non-primary network
- interfaces, use the option below.
- </P>
- (Default value: No)
- <P>
- <STRONG>Advertise host routes on secondary interfaces:</STRONG>
- For systems with multiple network interfaces, it is often useful to
- broadcast a false host route for the network address to other machines
- to reduce the likelihood of routing loops. This broadcasts information
- about all interfaces to each network to which the system is connected
- except the primary interface. For the same behavior on the primary
- interface, use the option above.
- </P>
- (Default value: No)
- <P>
- <STRONG>Filename for logging routing events:</STRONG> This is a
- useful parameter for debugging routing problems. Enter the path
- name for the file in which all routing events will be saved (such
- as /usr/tmp/route.events). Whenever a route is added, deleted, or
- changed, a note about the event is recorded in this file.
- </P>
- (Default value: none)
- <P>
- <STRONG>Filter out routes to network ___ and replace with a
- default with hop count of ___:</STRONG><BR> Enter a network interface address
- in dotted decimal (such as 1.2.3.4) or hexadecimal (such as 0x01020304)
- notation and a hop count of an integer less than sixteen. The purpose
- of this filter is to reduce the propagation of routes to slow links by
- sending a single default route. This is often used on systems connected
- to slow PPP links over modem lines to reduce traffic overhead of passing
- large routing packets over the link.
- </P>
- (Default value for hop count: 14)
- <CENTER>
- <INPUT TYPE="button" VALUE="Back to Form" onClick="self.history.go(-1)">
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- </FORM>
- EndOfFile
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