From: Aaron DuShey (adushey@xxxxxxxxx)
Date: Mon Apr 24 2000 - 16:32:15 GMT-3
Can someone who clearly understands this help me out?
Route-maps
When would it be a better solution to use a route-map deny vs a permit?
What about using the access-list to deny instead of the route map deny
action?
Also, when redistributing routing protocols.
Is there a recommendation on using distribute-lists vs route-maps on
redistribution routers?
Also, when using distribute-lists-
Doyle's IP book discusses the issues using distribute-list in interface vs
distribute-list out routing protocol. He then states that you risk routing
feedback on the redistributing router using the out version because routes
are only filtered on the way out, vs coming in. This seems to me to only be
an issue in D.V. routing protocols as they are the only routing algorithims
that advertise their routing table. My thought is though that unless you are
redistributing the same routing domains at different points, distribute
list-out wouldn't be a problem due to the split-horizon rule with DV
routing.
What are the issues with distribute-list out vs in & route feedback? Cisco's
case studies seem to use the out version mostly, and what I have recieved
from cisco themselves is to use distribute-list out.
thanks,
thought this maybe easier to understand w/an example-
route-map test permit 10
match ip address 1
access-list 1 deny 10.0.0.0 0.0.0.255
vs-
route-map test deny 10
match ip address 1
access-list 1 permit 10.0.0.0 0.0.0.255
vs-
route-map test deny 10
match ip address 1
access-list 1 deny 10.0.0.0 0.0.0.255
you get the idea-is there a recommendation on using these?
Aaron DuShey
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