Avocent Cyclades-PR4000 installation manual Routing Protocols 110

Cyclades-PR4000

CONFIG=>IP=>BGP4=>ACCESS LIST=>CONFIGURE RULES=><ACCESS LIST NAME>=>ADD

Parameter	Description
Rule Status	Enables the rule.
Scope	See explanation of this parameter in step 3.
Rule AS Position	Applies only for Access List Type equal to AS Path. Limits the search on AS number to
	a particular position in the route. For the example in Figure 12.5, Any would be the
	correct choice because AS 5 will appear in the middle or the beginning of the route.
Rule AS Number	Applies only for Access List Type equal to AS Path. Applies the rule to routes
	containing this AS number, with the restriction given in the preceding parameter.
Rule Distr. Search	Applies only for Access List Type equal to Dist BGP. Exact filters rules that match the
Type	IP Address/Mask pair exactly. Refine matches more specific routes.
Rule Distr. Address	Applies only for Access List Type equal to Dist BGP. Applies the rule to routes with
	this IP number and the mask defined in the next parameter.
Rule Distr. Mask	Applies only for Access List Type equal to Dist BGP. The shortened mask that is used
Bitlen	with the IP address defined in the previous parameter.
Community	Applies only for Access List Type equal to Community BGP. Applies this rule to the
	community number entered or to well-known communities defined in RFC 1997, BGP
	Communities.

STEP FIVE

Each access list can be applied to more than one interface. The access list parameters in the Neighbor Menu for the appropriate neighbor should be set now, since the access lists did not exist during step two.

Chapter 11 - Routing Protocols 110