Dell S4048-ON, Configuration Manual

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Controlling RIP Routing Updates
By default, RIP broadcasts routing information out all enabled interfaces, but you can configure RIP to send or to block RIP routing
information, either from a specific IP address or a specific interface.
To control which devices or interfaces receive routing updates, configure a direct update to one router and configure interfaces to
block RIP updates from other sources.
To control the source of RIP route information, use the following commands.
• Define a specific router to exchange RIP information between it and the Dell Networking system.
ROUTER RIP mode
neighbor ip-address
You can use this command multiple times to exchange RIP information with as many RIP networks as you want.
• Disable a specific interface from sending or receiving RIP routing information.
ROUTER RIP mode
passive-interface interface
Assigning a Prefix List to RIP Routes
Another method of controlling RIP (or any routing protocol) routing information is to filter the information through a prefix list. A
prefix list is applied to incoming or outgoing routes.
Those routes must meet the conditions of the prefix list; if not, Dell Networking OS drops the route. Prefix lists are globally applied
on all interfaces running RIP. Configure the prefix list in PREFIX LIST mode prior to assigning it to the RIP process.
For configuration information about prefix lists, refer to
Access Control Lists (ACLs) .
To apply prefix lists to incoming or outgoing RIP routes, use the following commands.
• Assign a configured prefix list to all incoming RIP routes.
ROUTER RIP mode
distribute-list prefix-list-name in
• Assign a configured prefix list to all outgoing RIP routes.
ROUTER RIP mode
distribute-list prefix-list-name out
To view the current RIP configuration, use the
show running-config
command in EXEC mode or the
show config
command in ROUTER RIP mode.
Adding RIP Routes from Other Instances
In addition to filtering routes, you can add routes from other routing instances or protocols to the RIP process.
With the
redistribute
command, you can include open shortest path first (OSPF), static, or directly connected routes in the
RIP process.
To add routes from other routing instances or protocols, use the following commands.
• Include directly connected or user-configured (static) routes in RIP.
ROUTER RIP mode
redistribute {connected | static} [metric metric-value ] [route-map map-name ]
–
metric-value
: the range is from 0 to 16.
–
map-name
: the name of a configured route map.
• Include IS-IS routes in RIP.
ROUTER RIP mode
Routing Information Protocol (RIP)
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