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Cyclades-PR4000
Chapter 11 - Routing Protocols 110
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
Type
Applies only for
Access List Type
equal to Dist BGP.
Exact
filters rules that match the
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
Bitlen
Applies only for
Access List Type
equal to Dist BGP. The shortened mask that is used
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.