EIGRP Route-Map Filtering

[lagapidis (Lazarus Agapidis)]

Hello Desmond

I can see how the various permit or deny statements found within route maps and ACLs can get confusing. Remember that in such a secnario, the ACL is used to match traffic while the route map is used to act upon matched traffic. Take a look at the following post that clarifies this further.

Introduction to Route-maps

Hello Austin Having access lists with deny statements that are being used in match statements for route maps using deny statements again can get confusing. I’ll try to clarify for you. Here we have an access list named R1_L0_DENY that denies 192.18.0.0/24. It also denies everything else because of the explicit deny at the end. Now the route map called TEST_4 tries to match IP addresses within the R1_L0_DENY access list. But a route map will match only whatever is permitted by the called AC…

You may also find it helpful to reveiw the following lesson on route-maps where it includes multiple examples where ACLs and route maps use different combinations of permit/deny statements…

Introduction to Route-maps

I hope this has been helpful!

Laz